User:Joseph.voip.ms/Sandbox - VoIP.ms Wiki

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User:Joseph.voip.ms/Sandbox

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-
Un SIP URI est une manière d’appeller une autre personne directement par SIP. En autre mot, un SIP URI est le numéro d’un utilisateur SIP. Un SIP URI ressemble à une adresse e-mail et le format et souvent de ce format:
+
== Choosing a Server ==
-
{| class="wikitable" style="border: none; background: none;"
+
[http://www.voip.ms VoIP.ms] offers many different servers, but which one should you choose? One misconception is that you should pick the closest to your location, however this is not needed most of the time. For example, if you are in the USA, any of the US servers will provide a really good latency and service quality. The newest server within a city is indicated with the highest number attached to the name, as they are classified in ascending order. Also worth noting is that there is a network tool that will help you when deciding which server you want to use, generally named a "ping", which will provide you the latency between you and the server. Therefore the server which provides you less latency should be used.
-
! colspan="2"| XX@YY:port
+
 
-
|-
+
=== Server Points of Presence ===
-
! XX
+
 
-
| Nom d'utilisateur / numéro
+
In the following links you will find a table with the server's information including their IP addresses.
-
|-
+
 
-
! YY
+
{| class="wikitable" style="font-size: 200%; border: none; width: 60%; height: 80px; text-align: center;"
-
| Hôte / Domaine / IP
+
| [[Servers#Canada | Canada]] || [[Servers#USA  | USA]] || [[Servers#International  | International]]
|}
|}
-
  Exemple: johnsmith@mon-uri.com
+
[[File:ChooseServerImg.png|thumb|none|1280px|VoIP.ms servers]]
 +
 
 +
===Server Realms===
 +
 
 +
Please click here [http://wiki.voip.ms/article/Server_Realms Server Realms] to get the Realm Name for the server you plan on using, this can differ from the Domain Name being used.
 +
 
 +
  Please note that the following servers will not be available to select as a DID Point of Presence for newer accounts:  
 +
Atlanta 1, Chicago 1, New York 1, New York 4, Seattle 1, Montreal 1, Montreal 2, Montreal 3, Montreal 4, Toronto, Toronto 2, Toronto 3, Toronto 4.
 +
 
 +
= What is a Ping? =
 +
 
 +
Ping is a standard tool used to test network connections. It is mostly used to determine if a server or device can be reached across the network and the latency of the response(the time it takes to send a packet to the destination and for it to return to your computer).
 +
 
 +
Ping tools are part of Windows, Mac OS X and Linux as well as some routers.
 +
 
 +
== How does the ping work? ==
 +
 
 +
It sends request messages to a target network address or DNS names at periodic intervals and measures the time it takes for a response message to arrive and return(better known as latency).
 +
 
 +
==How to ping on a PC==
 +
 
 +
Pinging is a command which tells you if the connection between your computer and a particular domain is working correctly.
 +
 
 +
In Windows, select Start > Programs > Accessories > Command Prompt. This will give you a window like the one below.
 +
 
 +
Enter the word ping, followed by a space, then the domain name.(montreal.voip.ms) in this case domain is our server name.
 +
 
 +
If the results show a series of replies, the connection is working. The time shows you how fast the connection is. If you see a "timed out" error instead of a reply, there is a breakdown somewhere between your computer and the domain.
 +
 
 +
[[File:Ping.gif|thumb|none|600px|Ping]]
 +
 
 +
==How to ping on a Mac Computer==
 +
 
 +
1- Click on Finder in the dock.
 +
 
 +
2- Click on Applications.
 +
 
 +
3- Click on Utilities.
 +
 
 +
4- Double-click on Network Utility. *
 +
 
 +
* In OS X Mavericks (10.9.x) this utility app changed location. Launch it from spotlight instead, either press "command"+"space bar" or click on spotlight directly (magnifying glass icon at top right of screen), type "network utility" and hit "return"
 +
 
 +
5- In the Network Utility window, click on the Ping tab
 +
 
 +
6- In the field under "Please enter the network address to ping," like montreal.voip.ms
 +
 
 +
 
 +
''If pings results are not consistent, you may have an issue with Jitter. You can work on this issue by adjusting the "Network Jitter Level" setting on your VoIP device. Usually a ping of under 150 ms is recommended in order to have good quality. The latency time to the server is important, however there are also other factors that could affect the quality of the calls such as packet loss (VoIP communications are very sensitive to this), and the Jitter level of your Internet connection.''
-
Une description général d’une adresse SIP peut ce retrouver ici [[wikipedia:SIP URI scheme | SIP URI Scheme]]. Les adresses, auquel elles utilisent le même format utilisateur@domaine...  comme adresse e-mail, peuvent être rejoint par un individu aillant un téléphone passant par internet de vous rejoindre sans passer par un réseau téléphonique publique.
+
The following is the output of running ping with the target losangeles.voip.ms.
-
Une adresse SIP peut être utilisé comme destination pour faire un renvoit à un numéro DID de VoIP.ms, une entré rapide dans le botin téléphonique ou pour transférer les appels entrants  à une extension ou un numéro à partir de l’extérieur de nos serveurs.
+
-
# Une option est d’envoyer les appels à un SIP URI externe, via votre numéro DID.
+
-
# La deuxième option est de recevoir les appels via SIP URI. Vous pouvez achever cela en utilisant votre numéro DID ou une extension interne d’un [[Sous Comptes | Sous Compte]].
+
-
# La troisième option est d’utiliser un numéro virtuel.
+
-
Veuillez noter qu’un SIP URI est seulement fonctionnel de sources externes. Cela n’est pas voulu d’être utilisé à l’interne du service VoIP.ms.
+
-
__TOC__
+
#ping losangeles.voip.ms
 +
Ping to losangeles.voip.ms [67.215.241.250] with 32 bytes de datos:
 +
Response from 67.215.241.250: bytes=32 time=67ms TTL=52
 +
Response from 67.215.241.250: bytes=32 time=69ms TTL=52
 +
Response from 67.215.241.250: bytes=32 time=68ms TTL=52
 +
Response from 67.215.241.250: bytes=32 time=67ms TTL=52
 +
ping statistics from 67.215.241.250:
 +
4 packets transmitted, 4 received, 0% packet lost. rtt min/avg/max/mdev = 67ms, 69ms, 67ms
 +
Sample ping output in windows:
 +
C:\Windows\system32>ping montreal.voip.ms
 +
 +
Pinging montreal.voip.ms [67.205.74.184] with 32 bytes of data:
 +
Reply from 67.205.74.184: bytes=32 time=85ms TTL=49
 +
Reply from 67.205.74.184: bytes=32 time=86ms TTL=49
 +
Reply from 67.205.74.184: bytes=32 time=86ms TTL=49
 +
Reply from 67.205.74.184: bytes=32 time=85ms TTL=49
 +
 +
Ping statistics for 67.205.74.184:
 +
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
 +
Approximate round trip times in milli-seconds:
 +
    Minimum = 85ms, Maximum = 86ms, Average = 85ms
-
== Envoyer les appels à une adresse SIP URI externe ==
 
-
Vous pouvez router les appels entrants à votre numéro DID en utilisant une adresse SIP URI d’une autre compagnie. Vous devrez créer une entré ressemblant à votrecompte@VotreAdresseIP auquel vous pourrez mettre cette route à votre DID.  
+
= Latency Testing Scripts (User Submitted) =
 +
<p>All the following scripts were produced by voip.ms users who felt others might also benefit from the output of their efforts. They were written over a span of Years and probably need adjusting before you use them, to cater for changes in servers over time and changes in policies (like not testing heavily subscribed servers which are not open to new registrations)</p>
 +
<p>If you aren't satisfied that the scripts are safe or simply don’t like the way they syntactically appear, you can still manually ping a selection of servers and choose a server based on the best latency. The following scripts are essentially just wrappers around the ping command which support lists of servers to feed to ping and present the output in a readable format.</p>
 +
<p>If you feel you have a simpler cleaner script that works for another platform or language, please do add it to this wiki via a support ticket.
 +
</p>
 +
=== Bash Script To Handle The Mac Ping Output Format ===
-
: ''Assurez-vous que l’autre compagnie supporte l’utilisation des SIP URI'''
+
<p>To make use of this script (1) save as a plain text file (2) set permissions on the file to executable (3) invoke script
 +
e.g. Save script below using your favourite editor as pingVoipMS.sh (2) chmod u+x pingVoipMS.sh (3) ./pingVoipMS.sh
 +
This is a bash 3.x script, so it also works in Linux, just change the ping packet loss field from 7 to 6 in the final loop below (or wherever the loss field is in your ping output format).  Depending upon your distro curl might need to change to wget.
 +
</p>
 +
<pre>
 +
#!/bin/bash
 +
# Ping several servers and display Latency, Jitter and Packet Loss
 +
#      Usage: [-c <count>][-i <wait time>][-r test restricted servers][<server list file>]
 +
#
 +
# The optional text file should be formatted with one host name per line.
 +
# The list of voip.ms servers is available at http://wiki.voip.ms/article/Choosing_Server
 +
# If no args are supplied, this script will scrape a ping server list from voip.ms
 +
#
 +
USER_FILE=""
 +
COUNT=3; INTERVAL=5; RESTRICTED=0
 +
restrictedList=(atlanta.voip.ms chicago.voip.ms
 +
                montreal.voip.ms montreal2.voip.ms montreal3.voip.ms montreal4.voip.ms
 +
                newyork.voip.ms newyork4.voip.ms seattle.voip.ms
 +
                toronto.voip.ms toronto2.voip.ms toronto3.voip.ms toronto4.voip.ms)
-
=== Creation d’un nouveau SIP URI ===
+
# Handle any passed in script arguments
-
Pour faire qu’un SIP URI soit utilisable avec plus d’un numéro DID, utilisez le tag {DID}. L’expression {DID} sera remplacer automatiquement par notre système pour le numéro DID comme listé sous la section "Manage DID section".
+
while getopts c:i:r parm
 +
do
 +
    case $parm in
 +
        c)count_opt=$OPTARG;;
 +
        i)interval_opt=$OPTARG;;
 +
        r)RESTRICTED=1;;
 +
        *)echo -e "Invalid arg\nUsage:\t[ -c <count of ECHO_REQUESTs to Tx, default 3> ] \
 +
                  \n\t[ -i <wait time (s) between datagrams, default 5> ]                \
 +
                  \n\t[ -r ] Include restricted servers in latency test                  \
 +
                  \n\t[FILE <ping server list> ]";exit 1;;
 +
    esac
 +
done
-
<div><ul>
+
# Test if an option was specified and whether it's a +ve non-zero integer
-
<li style="display: inline-block;">
+
[[ -n $count_opt    && ($count_opt =~ ^[[:digit:]]+$)    && $count_opt -gt 0 ]]    && COUNT=$count_opt
-
[[File:URIMenu.png|thumb|none|700px]]
+
[[ -n $interval_opt && ($interval_opt =~ ^[[:digit:]]+$) && $interval_opt -gt 0 ]] && INTERVAL=$interval_opt
-
</li>
+
-
<li style="display: inline-block;">
+
-
[[File:URICreer.png|thumb|none|700px]]
+
-
</li>
+
-
<li style="display: inline-block;">
+
-
[[File:URICreer2.png|thumb|none|700px]]
+
-
</li>
+
-
</ul></div>
+
-
; Exemples:
+
shift $(($OPTIND -1))
-
: 1{DID}@128.144.122.12
+
-+
-
: Le_Nom_D’[email protected]:5080
+
-
Le_Nom_D’extension @voip.exemple.com
+
 +
# Validate supplied file (server list)
 +
[[ -n $1 && !(-f $1 && -r $1) ]] && { echo "\"$1\" file does not exist or is not readable"; exit 1; }
 +
[[ -n $1 && -f $1 && -r $1 ]] && USER_FILE="$1"
-
''Composer une adresse SIP URI ou en utiliser un comme renvoit ne génère pas de charges (Appels sortants).''
+
if [[ -n $USER_FILE ]]
 +
then
 +
# Bash 3.x in macOS does not support readarray, need to do cumbersome array loops instead
 +
    while IFS= read -r line; do
 +
        serverList+=( "$line" )
 +
    done < <(grep -e '[[:alpha:]]*[[:alnum:]]\.voip\.ms' $USER_FILE | grep -v '^\s*#' | awk NF)
 +
else
 +
# N.B. The script looks for the html boldface tags <b> </b> inside a bracket
 +
# If the website alters and the parse fails, manually create the list and
 +
# supply as a script arg (or perhaps update the parsing to work again :)
 +
    while IFS= read -r line; do
 +
        serverList+=( "$line" )
 +
    done < <(curl --silent http://wiki.voip.ms/article/Choosing_Server | \
 +
            grep '(<b>[[:alpha:]]*[[:alnum:]]\.voip\.ms</b>)'         | \
 +
            tr "<>" " " | awk '{print $(NF-3)}'                        )
 +
fi
-
=== Création d’entré dans le botin téléphonique ===
+
# Newer voip.ms clients can't register onto these over-subscribed servers
-
Un SIP URI peut être associé à un [[phone book]] ou d’une entré abrégé de la même manière que de rentrer un numéro de téléphone.
+
# Don't test the restricted list unless explicitly asked (with the -r cmd line option)
-
Veuillez vérifier [[Répertoire_téléphonique#Comment_cr.C3.A9er_une_entr.C3.A9e_pour_un_SIP_URI | "Comment créer une entrée pour un SIP URI" ]].
+
if [[ $RESTRICTED -eq 0 ]]
 +
then
 +
    for server in ${restrictedList[@]}
 +
    do
 +
        ix=$(printf "%s\n" "${serverList[@]}" | grep -n "^${server}" | cut -d ":" -f1)
-
[[Image:Pb entry sipuri.jpg|thumb|none|700px]]
+
        while IFS= read -r idx; do
 +
            keys+=($idx)
 +
        done < <([[ $ix -gt 0 ]] && echo $((ix-1)))
 +
    done
 +
    for ((i=${#keys[@]} - 1; i >= 0; i--)); do unset serverList[keys[i]]; done
 +
fi
-
'''SIP URI''': Ici vous pouvez soit sélectionner '''Use Existing''' ou '''Create New''' pour assigner le [[SIP URI]] à votre entré de botin téléphonique.
+
if [[ ${#serverList[@]} -eq 0 ]]
 +
then
 +
    echo "No unrestricted Voip.ms servers could be found, please supply a server list"
 +
    exit 1
 +
fi
-
Cela remplace l’adresse alphanumérique (come sip:[email protected]) avec une abréviation numérique (comme *7501) facilitant la possibilité de composer un SIP URI d’un [[Appareil|Téléphones IP]] offrant seulement un pad numérique.
+
runTime=$(( $COUNT * $INTERVAL * ${#serverList[@]} ))
-
=== Négotiation de Codec ===
+
echo "PING will send $COUNT packet(s) with a wait of $INTERVAL sec(s) between each packet"
 +
echo "Change the PING options by invoking this script with -c and/or -i, default \"-c 3 -i 5\""
 +
echo "Over $((${#serverList[@]})) server(s) the estimated script Run Time will be $runTime seconds"
 +
echo "================================================================"
 +
printf "%-20s %-18s %7s %8s %6s  %s\n" "VoIP Server" "IP Address" "Latency" "Jitter" "Loss" "Countdown"
 +
echo "================================================================  (seconds)"
-
Quand vous routez vos appels entrants a une adresse SIP URI externe, le système envoit par défaut l’invite avec tout les codecs (uLaw, G729A et GSM).
+
for myLn in ${serverList[@]}
-
Dans ce cas, si vous voulez utiliser un codec spécifique (auquel nous supportons), vous devez faire la limitation de votre côté. Par exemple, si vous utilisez un système Asterisk/PBX et vous voulez seulement le codec uLaw fonctionnel, vous devrez ajouter l’objet suivant dans votre trunk:
+
do
-
: disallow=all
+
    while IFS=$'\n' read -r line; do
-
: allow=ulaw
+
        pingList+=( "$line" )
 +
        printf "%-64s %5d  %2d/%-2d\n" "$line" "$((runTime - $COUNT * $INTERVAL * ${#pingList[@]}))" "${#pingList[@]}" "${#serverList[@]}"
 +
    done < <( ping -c $COUNT -i $INTERVAL -q $myLn | awk '\
 +
        /^PING / {myH=$2}
 +
        /^PING / {
 +
            IP = substr($3,2,15)
 +
            split(IP,myIP,")") }
 +
        /packet loss/ {myPL=$7}
 +
        /min\/avg\/max/ {
 +
            split($4,myS,"/")
 +
            printf("%-20s %-18s %7.3f %8.3f %6s\n",
 +
                    myH, myIP[1], myS[2], myS[4], myPL ) }
 +
    ' )
 +
done
-
== Recevoir des appels entrants d’un SIP URI ==
+
echo "================================================================"
 +
echo -e "\nMost appropriate server listed in order of best latency\n"
 +
echo "================================================================"
 +
printf "%-20s %-18s %7s %8s %6s\n" "VoIP Server" "IP Address" "Latency" "Jitter" "Loss"
 +
echo "================================================================"
 +
printf "%s\n" "${pingList[@]}" | LC_ALL=C sort -n -k 3,3 -k 5,5 -k 4,4 | awk '{printf("%s    \(%2d\)\n",$0, NR)}'
 +
echo "================================================================"
 +
</pre>
-
=== Utilisant votre numéro DID ===  
+
=== Perl Script ===
-
Vous pouvez recevoir des appels SIP URI utilisant le format suivant {Number}@sip.voip.ms .Cela peut être utilisé avec votre numéro local du Canada ou États-Unis, pour qu’il soit rejoignable de l’extérieur.
+
Pings list of voip.ms servers round robin with optional output csv file.
-
[[Image:Did.jpg|thumb|none|700px]]
+
-
Ce format d’adresse SIP est utilisé par des services comme [[wikipedia:SIP Broker]] pour rejoindre des clients VoIP.ms.
+
    # usage ping_voip.ms.pl <number of times> <seconds in between> <output.csv>
 +
    use Net::Ping;
 +
    use Time::HiRes;
 +
    use strict;
 +
   
 +
    # input list
 +
    my @hosts = qw(
 +
        atlanta.voip.ms
 +
        atlanta2.voip.ms
 +
        chicago.voip.ms
 +
        chicago2.voip.ms
 +
        chicago3.voip.ms
 +
        chicago4.voip.ms
 +
        dallas.voip.ms
 +
        denver.voip.ms
 +
        denver2.voip.ms
 +
        houston.voip.ms
 +
        losangeles.voip.ms
 +
        losangeles2.voip.ms
 +
        newyork.voip.ms
 +
        newyork2.voip.ms
 +
        newyork3.voip.ms
 +
        newyork4.voip.ms
 +
        seattle.voip.ms
 +
        seattle2.voip.ms
 +
        seattle3.voip.ms
 +
        tampa.voip.ms
 +
        washington.voip.ms
 +
        washington2.voip.ms
 +
        montreal.voip.ms
 +
        montreal2.voip.ms
 +
        montreal3.voip.ms
 +
        montreal4.voip.ms
 +
        toronto2.voip.ms
 +
        toronto3.voip.ms
 +
        toronto4.voip.ms
 +
        toronto.voip.ms
 +
        london.voip.ms
 +
    );
 +
   
 +
    $| = 1; #autoflush
 +
    # High precision syntax (requires Time::HiRes)
 +
    my $p = Net::Ping->new("icmp",1);
 +
    $p->hires();
 +
    my $max_name_length = (reverse sort { $a <=> $b } map { length($_) } @hosts)[0];
 +
    my $count = 4; # number of times to ping
 +
    my $interval = 5; # seconds between ping rounds
 +
    my $output_file = "";
 +
    my @data;
 +
   
 +
    # check for arguments
 +
    my $num_args = @ARGV;
 +
    if ($num_args >= 1) {$count = $ARGV[0];}
 +
    if ($num_args >= 2) {$interval = $ARGV[1];}
 +
    if ($num_args >= 3) {$output_file = $ARGV[2];}
 +
   
 +
    # check argument validity
 +
    $0 =~ /^.*\\(.*)$/;
 +
    my $script = $1;
 +
    if ($count !~ /^\d+$/ or $interval !~ /^\d+$/) {die "Usage: $script <number of rounds> <seconds between rounds> <output.csv>\n";}
 +
    if (length($output_file) > 0 and $output_file !~ /\.csv$/) {$output_file .= ".csv";}
 +
   
 +
    # main loop
 +
    for my $i (1..$count)
 +
    {
 +
        sleep $interval unless $i == 1;
 +
        print "Round $i\n";
 +
        my $host_num=0;
 +
        foreach my $host (@hosts)
 +
        {
 +
            (my $ret, my $duration, my $ip) = $p->ping($host);
 +
            $ip =~ /(\d+)\.(\d+)\.(\d+)\.(\d+)/;
 +
            if ($ret)
 +
            {
 +
                printf("%*s [ip: %3s.%3s.%3s.%3s] is alive (%6.2f ms)\n", $max_name_length, $host, $1, $2, $3, $4, $duration*1000);
 +
                $data[$host_num][$i]=$duration*1000;
 +
            }
 +
            else
 +
            {
 +
                printf("%*s [ip: %3s.%3s.%3s.%3s] is dead\n", $max_name_length, $host, $1, $2, $3, $4);
 +
            }
 +
            $host_num++;
 +
        }
 +
        print "\n";
 +
    }
 +
    $p->close();
 +
   
 +
    # if output file name given
 +
    if (length($output_file)>0)
 +
    {
 +
        # print output to file
 +
        open FILE, ">$output_file" or die "$!\n";
 +
       
 +
        # print column headers
 +
        print FILE "Server\\Round";
 +
        for my $i (1..$count)
 +
        {
 +
            print FILE ", $i";
 +
        }
 +
        print FILE ", Average\n";
 +
       
 +
        # print data
 +
        my $i = 0;
 +
        foreach my $host (@hosts)
 +
        {
 +
            print FILE "$host";
 +
            my $sum = 0;
 +
            for my $j (1..$count)
 +
            {
 +
                $sum += $data[$i][$j];
 +
                printf FILE ", %8.4f",$data[$i][$j];
 +
            }
 +
            printf FILE ", %8.4f\n",$sum/$count;
 +
            $i++;
 +
        }
 +
       
 +
        close FILE;
 +
        print "Data written to $output_file\n";
 +
    }
 +
   
 +
    # print summary to screen
 +
    my $i = 0;
 +
    printf("%-*s Average (ms)\n", $max_name_length, "Server");
 +
    foreach my $host (@hosts)
 +
    {
 +
        my $sum = 0;
 +
        for my $j (1..$count)
 +
        {
 +
            $sum += $data[$i][$j];
 +
        }
 +
        printf("%-*s %8.4f\n", $max_name_length+1, $host, $sum/$count);
 +
        $i++;
 +
    }
-
''' Nous avons été mit au courrant que le service SIP Broker ne fonctionne pas correctement. Cela est hors de notre contrôle. '''
 
-
Une autre variance, étant aussi valide, est de spécifier le serveur VoIP.ms auquel votre numéro DID est situé.
+
Output:
-
:sip:4166471234@toronto.voip.ms
+
    Round 1
 +
        atlanta.voip.ms [ip: 174. 34.146.162] is alive ( 88.97 ms)
 +
      atlanta2.voip.ms [ip: 72.  9.246.170] is alive ( 92.99 ms)
 +
        chicago.voip.ms [ip: 208.100. 39. 52] is alive ( 49.70 ms)
 +
      chicago2.voip.ms [ip: 208.100. 39. 53] is alive ( 59.76 ms)
 +
      chicago3.voip.ms [ip: 208.100. 39. 54] is alive ( 59.53 ms)
 +
      chicago4.voip.ms [ip: 208.100. 39. 55] is alive ( 49.73 ms)
 +
        dallas.voip.ms [ip:  74. 54. 54.178] is alive ( 94.99 ms)
 +
        denver.voip.ms [ip: 173.248.161. 90] is alive ( 94.05 ms)
 +
        denver2.voip.ms [ip: 173.248.159.210] is alive ( 85.13 ms)
 +
        houston.voip.ms [ip: 209. 62.  1.  2] is alive (102.87 ms)
 +
    losangeles.voip.ms [ip:  96. 44.149.186] is alive ( 64.92 ms)
 +
    losangeles2.voip.ms [ip:  96. 44.149.202] is alive ( 63.41 ms)
 +
        newyork.voip.ms [ip:  74. 63. 41.218] is alive (131.75 ms)
 +
      newyork2.voip.ms [ip: 107.  6. 67.236] is alive (120.64 ms)
 +
      newyork3.voip.ms [ip: 107.  6. 67.237] is alive (120.49 ms)
 +
      newyork4.voip.ms [ip: 107.  6. 67.238] is alive (111.43 ms)
 +
        seattle.voip.ms [ip:  50. 23.160. 50] is alive ( 94.25 ms)
 +
      seattle2.voip.ms [ip:  50. 23.160. 51] is alive ( 95.86 ms)
 +
      seattle3.voip.ms [ip:  50. 23.160. 52] is alive ( 90.85 ms)
 +
          tampa.voip.ms [ip:  68.233.226. 97] is alive (123.29 ms)
 +
    washington.voip.ms [ip: 208. 43.234.226] is alive ( 98.71 ms)
 +
    washington2.voip.ms [ip: 208. 43.234.227] is alive (101.19 ms)
 +
      montreal.voip.ms [ip:  67.205. 74.184] is alive ( 81.82 ms)
 +
      montreal2.voip.ms [ip:  67.205. 74.187] is alive ( 86.13 ms)
 +
      montreal3.voip.ms [ip:  72. 55.168. 18] is alive ( 77.09 ms)
 +
      montreal4.voip.ms [ip:  67.205. 74.179] is alive ( 96.18 ms)
 +
      toronto2.voip.ms [ip: 184. 75.215.114] is alive (103.70 ms)
 +
      toronto3.voip.ms [ip: 184. 75.215.146] is alive (131.27 ms)
 +
      toronto4.voip.ms [ip: 184. 75.213.210] is alive (125.13 ms)
 +
        toronto.voip.ms [ip: 184. 75.215.106] is alive (103.26 ms)
 +
        london.voip.ms [ip:  5. 77. 36.136] is alive (152.77 ms)
 +
   
 +
    Round 2
 +
        atlanta.voip.ms [ip: 174. 34.146.162] is alive ( 88.14 ms)
 +
      atlanta2.voip.ms [ip:  72.  9.246.170] is alive ( 92.86 ms)
 +
        chicago.voip.ms [ip: 208.100. 39. 52] is alive ( 50.03 ms)
 +
      chicago2.voip.ms [ip: 208.100. 39. 53] is alive ( 59.44 ms)
 +
      chicago3.voip.ms [ip: 208.100. 39. 54] is alive ( 59.33 ms)
 +
      chicago4.voip.ms [ip: 208.100. 39. 55] is alive ( 50.22 ms)
 +
        dallas.voip.ms [ip:  74. 54. 54.178] is alive ( 95.58 ms)
 +
        denver.voip.ms [ip: 173.248.161. 90] is alive ( 95.94 ms)
 +
        denver2.voip.ms [ip: 173.248.159.210] is alive ( 85.29 ms)
 +
        houston.voip.ms [ip: 209. 62.  1.  2] is alive (102.73 ms)
 +
    losangeles.voip.ms [ip:  96. 44.149.186] is alive ( 65.59 ms)
 +
    losangeles2.voip.ms [ip:  96. 44.149.202] is alive ( 64.27 ms)
 +
        newyork.voip.ms [ip:  74. 63. 41.218] is alive (112.74 ms)
 +
      newyork2.voip.ms [ip: 107.  6. 67.236] is alive (121.22 ms)
 +
      newyork3.voip.ms [ip: 107.  6. 67.237] is alive (121.34 ms)
 +
      newyork4.voip.ms [ip: 107.  6. 67.238] is alive (110.75 ms)
 +
        seattle.voip.ms [ip:  50. 23.160. 50] is alive ( 94.06 ms)
 +
      seattle2.voip.ms [ip:  50. 23.160. 51] is alive ( 95.33 ms)
 +
      seattle3.voip.ms [ip:  50. 23.160. 52] is alive ( 91.58 ms)
 +
          tampa.voip.ms [ip:  68.233.226. 97] is alive (122.94 ms)
 +
    washington.voip.ms [ip: 208. 43.234.226] is alive ( 98.28 ms)
 +
    washington2.voip.ms [ip: 208. 43.234.227] is alive (101.40 ms)
 +
      montreal.voip.ms [ip:  67.205. 74.184] is alive ( 81.91 ms)
 +
      montreal2.voip.ms [ip:  67.205. 74.187] is alive ( 85.64 ms)
 +
      montreal3.voip.ms [ip:  72. 55.168. 18] is alive ( 75.15 ms)
 +
      montreal4.voip.ms [ip:  67.205. 74.179] is alive ( 96.79 ms)
 +
      toronto2.voip.ms [ip: 184. 75.215.114] is alive (103.10 ms)
 +
      toronto3.voip.ms [ip: 184. 75.215.146] is alive (150.85 ms)
 +
      toronto4.voip.ms [ip: 184. 75.213.210] is alive (138.40 ms)
 +
        toronto.voip.ms [ip: 184. 75.215.106] is alive (103.45 ms)
 +
        london.voip.ms [ip:  5. 77. 36.136] is alive (170.79 ms)
 +
   
 +
    Round 3
 +
        atlanta.voip.ms [ip: 174. 34.146.162] is alive ( 88.76 ms)
 +
      atlanta2.voip.ms [ip:  72.  9.246.170] is alive ( 92.86 ms)
 +
        chicago.voip.ms [ip: 208.100. 39. 52] is alive ( 49.65 ms)
 +
      chicago2.voip.ms [ip: 208.100. 39. 53] is alive ( 60.01 ms)
 +
      chicago3.voip.ms [ip: 208.100. 39. 54] is alive ( 59.05 ms)
 +
      chicago4.voip.ms [ip: 208.100. 39. 55] is alive ( 49.53 ms)
 +
        dallas.voip.ms [ip:  74. 54. 54.178] is alive ( 95.82 ms)
 +
        denver.voip.ms [ip: 173.248.161. 90] is alive ( 95.02 ms)
 +
        denver2.voip.ms [ip: 173.248.159.210] is alive ( 85.60 ms)
 +
        houston.voip.ms [ip: 209. 62.  1.  2] is alive (103.35 ms)
 +
    losangeles.voip.ms [ip:  96. 44.149.186] is alive ( 65.79 ms)
 +
    losangeles2.voip.ms [ip:  96. 44.149.202] is alive ( 64.05 ms)
 +
        newyork.voip.ms [ip:  74. 63. 41.218] is alive (113.01 ms)
 +
      newyork2.voip.ms [ip: 107.  6. 67.236] is alive (121.41 ms)
 +
      newyork3.voip.ms [ip: 107.  6. 67.237] is alive (122.23 ms)
 +
      newyork4.voip.ms [ip: 107.  6. 67.238] is alive (110.62 ms)
 +
        seattle.voip.ms [ip:  50. 23.160. 50] is alive ( 93.65 ms)
 +
      seattle2.voip.ms [ip:  50. 23.160. 51] is alive ( 95.19 ms)
 +
      seattle3.voip.ms [ip:  50. 23.160. 52] is alive ( 90.75 ms)
 +
          tampa.voip.ms [ip:  68.233.226. 97] is alive (125.12 ms)
 +
    washington.voip.ms [ip: 208. 43.234.226] is alive ( 98.19 ms)
 +
    washington2.voip.ms [ip: 208. 43.234.227] is alive (101.98 ms)
 +
      montreal.voip.ms [ip:  67.205. 74.184] is alive ( 80.16 ms)
 +
      montreal2.voip.ms [ip:  67.205. 74.187] is alive ( 87.16 ms)
 +
      montreal3.voip.ms [ip:  72. 55.168. 18] is alive ( 76.54 ms)
 +
      montreal4.voip.ms [ip:  67.205. 74.179] is alive ( 97.51 ms)
 +
      toronto2.voip.ms [ip: 184. 75.215.114] is alive (104.18 ms)
 +
      toronto3.voip.ms [ip: 184. 75.215.146] is alive (142.81 ms)
 +
      toronto4.voip.ms [ip: 184. 75.213.210] is alive (138.95 ms)
 +
        toronto.voip.ms [ip: 184. 75.215.106] is alive (103.78 ms)
 +
        london.voip.ms [ip:  5. 77. 36.136] is alive (153.14 ms)
 +
   
 +
    Round 4
 +
        atlanta.voip.ms [ip: 174. 34.146.162] is alive ( 89.19 ms)
 +
      atlanta2.voip.ms [ip:  72.  9.246.170] is alive ( 92.98 ms)
 +
        chicago.voip.ms [ip: 208.100. 39. 52] is alive ( 49.21 ms)
 +
      chicago2.voip.ms [ip: 208.100. 39. 53] is alive ( 60.50 ms)
 +
      chicago3.voip.ms [ip: 208.100. 39. 54] is alive ( 59.68 ms)
 +
      chicago4.voip.ms [ip: 208.100. 39. 55] is alive ( 50.18 ms)
 +
        dallas.voip.ms [ip:  74. 54. 54.178] is alive ( 93.93 ms)
 +
        denver.voip.ms [ip: 173.248.161. 90] is alive ( 94.22 ms)
 +
        denver2.voip.ms [ip: 173.248.159.210] is alive ( 85.10 ms)
 +
        houston.voip.ms [ip: 209. 62.  1.  2] is alive (103.67 ms)
 +
    losangeles.voip.ms [ip:  96. 44.149.186] is alive ( 65.58 ms)
 +
    losangeles2.voip.ms [ip:  96. 44.149.202] is alive ( 63.60 ms)
 +
        newyork.voip.ms [ip:  74. 63. 41.218] is alive (114.76 ms)
 +
      newyork2.voip.ms [ip: 107.  6. 67.236] is alive (120.44 ms)
 +
      newyork3.voip.ms [ip: 107.  6. 67.237] is alive (121.05 ms)
 +
      newyork4.voip.ms [ip: 107.  6. 67.238] is alive (110.51 ms)
 +
        seattle.voip.ms [ip:  50. 23.160. 50] is alive ( 94.04 ms)
 +
      seattle2.voip.ms [ip:  50. 23.160. 51] is alive ( 96.92 ms)
 +
      seattle3.voip.ms [ip:  50. 23.160. 52] is alive ( 91.23 ms)
 +
          tampa.voip.ms [ip:  68.233.226. 97] is alive (123.28 ms)
 +
    washington.voip.ms [ip: 208. 43.234.226] is alive ( 98.45 ms)
 +
    washington2.voip.ms [ip: 208. 43.234.227] is alive (100.94 ms)
 +
      montreal.voip.ms [ip:  67.205. 74.184] is alive ( 82.33 ms)
 +
      montreal2.voip.ms [ip:  67.205. 74.187] is alive ( 85.02 ms)
 +
      montreal3.voip.ms [ip:  72. 55.168. 18] is alive ( 76.85 ms)
 +
      montreal4.voip.ms [ip:  67.205. 74.179] is alive ( 96.32 ms)
 +
      toronto2.voip.ms [ip: 184. 75.215.114] is alive (104.22 ms)
 +
      toronto3.voip.ms [ip: 184. 75.215.146] is alive (148.33 ms)
 +
      toronto4.voip.ms [ip: 184. 75.213.210] is alive (141.61 ms)
 +
        toronto.voip.ms [ip: 184. 75.215.106] is alive (105.91 ms)
 +
        london.voip.ms [ip:  5. 77. 36.136] is alive (152.85 ms)
 +
   
 +
    Server              Average (ms)
 +
    atlanta.voip.ms      88.7630
 +
    atlanta2.voip.ms      92.9233
 +
    chicago.voip.ms      49.6477
 +
    chicago2.voip.ms      59.9305
 +
    chicago3.voip.ms      59.3972
 +
    chicago4.voip.ms      49.9152
 +
    dallas.voip.ms        95.0790
 +
    denver.voip.ms        94.8077
 +
    denver2.voip.ms      85.2797
 +
    houston.voip.ms      103.1562
 +
    losangeles.voip.ms    65.4693
 +
    losangeles2.voip.ms  63.8347
 +
    newyork.voip.ms      118.0643
 +
    newyork2.voip.ms    120.9265
 +
    newyork3.voip.ms    121.2778
 +
    newyork4.voip.ms    110.8275
 +
    seattle.voip.ms      93.9993
 +
    seattle2.voip.ms      95.8267
 +
    seattle3.voip.ms      91.1035
 +
    tampa.voip.ms        123.6570
 +
    washington.voip.ms    98.4065
 +
    washington2.voip.ms  101.3774
 +
    montreal.voip.ms      81.5525
 +
    montreal2.voip.ms    85.9863
 +
    montreal3.voip.ms    76.4058
 +
    montreal4.voip.ms    96.7013
 +
    toronto2.voip.ms    103.7986
 +
    toronto3.voip.ms    143.3156
 +
    toronto4.voip.ms    136.0254
 +
    toronto.voip.ms      104.1012
 +
    london.voip.ms      157.3885
-
'''Veuillez noter que l’option de composer sip.voip.ms est plus fiable que d’utiliser le serveur vu que vous n’aurez pas besoin de spécifier le point de présence. En utilisant le serveur à la place, vous devrez composer le serveur que le numéro utilise pour que cela fonctionne correctement. '''
+
=== Powershell ===
-
=== Utiliser l’extension interne de votre sous-compte ===
+
Dec 2017 - A bug in the code shown washington2.voip.ms as the best server, this was corrected.
-
Quand vous assignez une extension interne à votre [[Sous-comptes|sous-compte]], cela peut être également utilisé comme adresse SIP URI externe. Par exemple, si votre extension est 2, vous pourriez la rejoindre directement d’un autre réseau avec le URI:  1000002@houston.voip.ms .
+
-
:(Rmplacez houston.voip.ms par le serveur votre sous-compte s’enregistre. 100000 par votre identifiant de compte et le 2 par l’extension interne de votre sous-compte).  
+
<pre>
 +
# Usage: Copy and paste the following code into a powershell window
 +
# To run it from a command prompt, save this file with extension ps1.
 +
# Then run Powershell.exe -file "pathtothisscript.ps1"
 +
Clear-Variable best* -Scope Global #Clear the best* variables in case you run it more than once...
 +
#Get the list of servers into an array
 +
$Servers =     
 +
@("amsterdam.voip.ms","atlanta.voip.ms","atlanta2.voip.ms","chicago.voip.ms","chicago2.voip.ms","chicago3.voip.ms",
 +
"chicago4.voip.ms","dallas.voip.ms","dallas2.voip.ms","denver.voip.ms","denver2.voip.ms","houston.voip.ms",
 +
"houston2.voip.ms","london.voip.ms","losangeles.voip.ms","losangeles2.voip.ms","melbourne.voip.ms","montreal.voip.ms",
 +
"montreal2.voip.ms","montreal3.voip.ms","montreal4.voip.ms","montreal5.voip.ms","montreal6.voip.ms","montreal7.voip.ms",
 +
"montreal8.voip.ms","newyork.voip.ms","newyork2.voip.ms","newyork3.voip.ms","newyork4.voip.ms","newyork5.voip.ms",
 +
"newyork6.voip.ms","newyork7.voip.ms","newyork8.voip.ms","paris.voip.ms","sanjose.voip.ms","sanjose2.voip.ms",
 +
"seattle.voip.ms","seattle2.voip.ms","seattle3.voip.ms","tampa.voip.ms","tampa2.voip.ms","toronto.voip.ms",
 +
"toronto2.voip.ms","toronto3.voip.ms","toronto4.voip.ms","toronto5.voip.ms","toronto6.voip.ms","toronto7.voip.ms",
 +
"toronto8.voip.ms","vancouver.voip.ms","vancouver2.voip.ms","washington.voip.ms","washington2.voip.ms")
 +
$k = 0 #Counting variable so we know what server number we are testing
 +
#num of servers to test
 +
$servercount = $servers.length
 +
#Do the following code for each server in our array
 +
ForEach($server in $servers)
 +
{ 
 +
  #Add one to the counting variable....we are on server #1...then server 2, then server 3 etc...
 +
  $k++
 +
  #Update the progress bar                   
 +
  Write-Progress -Activity "Testing Server: ${server}" -status "Testing Server $k out of $servercount" -percentComplete ($k / $servercount*100)
 +
  #Counting variable for number of times we tried to ping a given server
 +
  $i = 0
 +
  Do{
 +
    #assume a failure
 +
    $pingsuccess = $false
 +
    $i++ #Add one to the counting variable.....1st try....2nd try....3rd try etc...
 +
    Try{
 +
        #Try to ping
 +
        $currentping = (test-connection $server -count 1 -ErrorAction Stop).responsetime
 +
        #If success full, set success variable
 +
        $pingsuccess = $true
 +
    }
 +
    #Catch the failure and set the success variable to false
 +
    Catch {
 +
      $pingsuccess = $false
 +
      }   
 +
  }
 +
  #Try everything between Do and While up to 5 times, or while $pingsuccess is not true
 +
  While($pingsuccess -eq $false -and $i -le 5)
 +
  #Compare the last ping test with the best known ping test....if there is no known best ping test, assume this one is the best $bestping = $currentping
 +
  If($pingsuccess -and ($currentping -lt $bestping -or (!($bestping)))){
 +
  #If this is the best ping...save it
 +
        $bestserver = $server    #Save the best server
 +
        $bestping = $currentping #Save the best ping results
 +
  }
 +
  write-host "tested: $server at $currentping ms after $i attempts" #write the results of the test for this server
 +
}
 +
write-host "`r`n The server with the best ping is: $bestserver at $bestping ms`r`n" #write the end result
 +
Pause
 +
</pre>
-
Important:  Aucun filtrage d’appel peut être appliqué ni de route spécial (renvoit d’appel) à un appel SIP URI direct. Les appels arriveront directement au sous-compte en question.
+
=== Linux Shell Script ===
-
[[Image:Extension.jpg|thumb|none|700px]]
+
Pings several voip.ms servers
-
=== Utiliser un iNum ===
+
  #!/bin/sh
-
N’importe quel numéro iNum (de n’importe quel fournisseur) est un SIP URI. Seulement ajouter @sip.inum.net
+
  # Ping several servers and display Latency, Jitter and Packet Loss
 +
  #
 +
  # First, create a text file with all servers you want to ping - one host name per line.
 +
  # The list of voip.ms servers is available at http://wiki.voip.ms/article/Choosing_Server
 +
  myHF="voip_ping_hosts.txt"
 +
  # Sample file:
 +
  #    toronto.voip.ms
 +
  #    montreal.voip.ms
 +
  #    seattle.voip.ms
 +
  #    chicago.voip.ms
 +
  #    newyork.voip.ms
 +
  #
 +
  echo "============================================"
 +
  printf "%-20s %7s %8s %6s\n" "VoIP Server" "Latency" "Jitter" "Loss"
 +
  echo "============================================"
 +
  cat ${myHF} |\
 +
  while read myLn
 +
  do
 +
      ping -c 3 -i 5 -q $myLn |\
 +
      awk '/^PING / {myH=$2}
 +
          /packet loss/ {myPL=$6}
 +
          /min\/avg\/max/ {
 +
              split($4,myS,"/")
 +
              printf( "%-20s    %3.1f    %1.3f  %4s\n", myH, myS[2], myS[4], myPL)
 +
          }'
 +
  done
 +
  echo "============================================"
-
Par exemple, l’iNum 883510009999999 deviendra:
+
Output:
-+
-
=== Utiliser un numéro virtuel ===
+
  ============================================
 +
  VoIP Server          Latency  Jitter  Loss
 +
  ============================================
 +
  toronto.voip.ms        68.3    0.439    0%
 +
  montreal.voip.ms        89.6    0.197    0%
 +
  seattle.voip.ms        71.2    0.387    0%
 +
  chicago.voip.ms        71.6    0.084    0%
 +
  newyork.voip.ms        79.1    0.411    0%
 +
  ============================================
-
Un numéro SIP virtuel est similaire à un numéro DID. La grande différence est qu’un numéro Virtuel n’est pas accessible par "PSTN".  Ces numéros virtuels peuvent seulement être rejoint via "SIP URI" par internet. Par exemple, si vous avez un numéro DID avec un autre fournisseur supportant les renvoit par SIP URI, vous pourriez faire un renvoit d’appel de ce fournisseur à votre numéro virtuel comme tout autre numéro.
+
= Latency and its importance =
-
Tout numéro virtuel consiste de la numérotation suivante:  chiffres: 11 + CodeduCompte + 3 numéro de votre choix pour un total de 11 chiffres. Le URI final sera le numéro suivit du signe @ a l’un de vos serveur. Si vous avez l’intention d’envoyer les appels à un téléphone ou un adapteur, vous devrez le pointer au bon serveur.
+
-
: Exemple SIP URI: 11100000123@houston.voip.ms
+
Latency is very important for Voip, this will determine the time that will take for the data package transmission to reach the destination. A high latency will lead to a delay and echoes in the communication.
-
[[Image:Virtualsip.jpg|thumb|none|700px]]
+
Latency is measured in milliseconds (ms) For example: a latency of 150ms is barely noticeable, thus acceptable. Higher than that, quality starts to suffer. When it gets higher than 300 ms, it becomes unacceptable.
-
[[category:guides en français]]
+
[[category:guides]]

Latest revision as of 18:55, 24 May 2018

Contents

Choosing a Server

VoIP.ms offers many different servers, but which one should you choose? One misconception is that you should pick the closest to your location, however this is not needed most of the time. For example, if you are in the USA, any of the US servers will provide a really good latency and service quality. The newest server within a city is indicated with the highest number attached to the name, as they are classified in ascending order. Also worth noting is that there is a network tool that will help you when deciding which server you want to use, generally named a "ping", which will provide you the latency between you and the server. Therefore the server which provides you less latency should be used.

Server Points of Presence

In the following links you will find a table with the server's information including their IP addresses.

Canada USA International
VoIP.ms servers

Server Realms

Please click here Server Realms to get the Realm Name for the server you plan on using, this can differ from the Domain Name being used. 

Please note that the following servers will not be available to select as a DID Point of Presence for newer accounts: 
Atlanta 1, Chicago 1, New York 1, New York 4, Seattle 1, Montreal 1, Montreal 2, Montreal 3, Montreal 4, Toronto, Toronto 2, Toronto 3, Toronto 4.

What is a Ping?

Ping is a standard tool used to test network connections. It is mostly used to determine if a server or device can be reached across the network and the latency of the response(the time it takes to send a packet to the destination and for it to return to your computer).

Ping tools are part of Windows, Mac OS X and Linux as well as some routers.

How does the ping work?

It sends request messages to a target network address or DNS names at periodic intervals and measures the time it takes for a response message to arrive and return(better known as latency).

How to ping on a PC

Pinging is a command which tells you if the connection between your computer and a particular domain is working correctly.

In Windows, select Start > Programs > Accessories > Command Prompt. This will give you a window like the one below.

Enter the word ping, followed by a space, then the domain name.(montreal.voip.ms) in this case domain is our server name.

If the results show a series of replies, the connection is working. The time shows you how fast the connection is. If you see a "timed out" error instead of a reply, there is a breakdown somewhere between your computer and the domain.

Ping

How to ping on a Mac Computer

1- Click on Finder in the dock.

2- Click on Applications.

3- Click on Utilities.

4- Double-click on Network Utility. *

* In OS X Mavericks (10.9.x) this utility app changed location. Launch it from spotlight instead, either press "command"+"space bar" or click on spotlight directly (magnifying glass icon at top right of screen), type "network utility" and hit "return"

5- In the Network Utility window, click on the Ping tab

6- In the field under "Please enter the network address to ping," like montreal.voip.ms


If pings results are not consistent, you may have an issue with Jitter. You can work on this issue by adjusting the "Network Jitter Level" setting on your VoIP device. Usually a ping of under 150 ms is recommended in order to have good quality. The latency time to the server is important, however there are also other factors that could affect the quality of the calls such as packet loss (VoIP communications are very sensitive to this), and the Jitter level of your Internet connection.

The following is the output of running ping with the target losangeles.voip.ms. 

#ping losangeles.voip.ms
Ping to losangeles.voip.ms [67.215.241.250] with 32 bytes de datos:
Response from 67.215.241.250: bytes=32 time=67ms TTL=52
Response from 67.215.241.250: bytes=32 time=69ms TTL=52
Response from 67.215.241.250: bytes=32 time=68ms TTL=52
Response from 67.215.241.250: bytes=32 time=67ms TTL=52
ping statistics from 67.215.241.250:
4 packets transmitted, 4 received, 0% packet lost. rtt min/avg/max/mdev = 67ms, 69ms, 67ms

Sample ping output in windows: 

C:\Windows\system32>ping montreal.voip.ms

Pinging montreal.voip.ms [67.205.74.184] with 32 bytes of data:
Reply from 67.205.74.184: bytes=32 time=85ms TTL=49
Reply from 67.205.74.184: bytes=32 time=86ms TTL=49
Reply from 67.205.74.184: bytes=32 time=86ms TTL=49
Reply from 67.205.74.184: bytes=32 time=85ms TTL=49

Ping statistics for 67.205.74.184:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 85ms, Maximum = 86ms, Average = 85ms


Latency Testing Scripts (User Submitted)

All the following scripts were produced by voip.ms users who felt others might also benefit from the output of their efforts. They were written over a span of Years and probably need adjusting before you use them, to cater for changes in servers over time and changes in policies (like not testing heavily subscribed servers which are not open to new registrations)

If you aren't satisfied that the scripts are safe or simply don’t like the way they syntactically appear, you can still manually ping a selection of servers and choose a server based on the best latency. The following scripts are essentially just wrappers around the ping command which support lists of servers to feed to ping and present the output in a readable format.

If you feel you have a simpler cleaner script that works for another platform or language, please do add it to this wiki via a support ticket.

Bash Script To Handle The Mac Ping Output Format

To make use of this script (1) save as a plain text file (2) set permissions on the file to executable (3) invoke script e.g. Save script below using your favourite editor as pingVoipMS.sh (2) chmod u+x pingVoipMS.sh (3) ./pingVoipMS.sh This is a bash 3.x script, so it also works in Linux, just change the ping packet loss field from 7 to 6 in the final loop below (or wherever the loss field is in your ping output format). Depending upon your distro curl might need to change to wget. 

#!/bin/bash
# Ping several servers and display Latency, Jitter and Packet Loss
#      Usage: [-c <count>][-i <wait time>][-r test restricted servers][<server list file>]
#
# The optional text file should be formatted with one host name per line.
# The list of voip.ms servers is available at http://wiki.voip.ms/article/Choosing_Server
# If no args are supplied, this script will scrape a ping server list from voip.ms
#
USER_FILE=""
COUNT=3; INTERVAL=5; RESTRICTED=0
restrictedList=(atlanta.voip.ms chicago.voip.ms
                montreal.voip.ms montreal2.voip.ms montreal3.voip.ms montreal4.voip.ms
                newyork.voip.ms newyork4.voip.ms seattle.voip.ms
                toronto.voip.ms toronto2.voip.ms toronto3.voip.ms toronto4.voip.ms)

# Handle any passed in script arguments
while getopts c:i:r parm
do
    case $parm in
        c)count_opt=$OPTARG;;
        i)interval_opt=$OPTARG;;
        r)RESTRICTED=1;;
        *)echo -e "Invalid arg\nUsage:\t[ -c <count of ECHO_REQUESTs to Tx, default 3> ] \
                  \n\t[ -i <wait time (s) between datagrams, default 5> ]                \
                  \n\t[ -r ] Include restricted servers in latency test                  \
                  \n\t[FILE <ping server list> ]";exit 1;;
    esac
done

# Test if an option was specified and whether it's a +ve non-zero integer
[[ -n $count_opt    && ($count_opt =~ ^[[:digit:]]+$)    && $count_opt -gt 0 ]]    && COUNT=$count_opt
[[ -n $interval_opt && ($interval_opt =~ ^[[:digit:]]+$) && $interval_opt -gt 0 ]] && INTERVAL=$interval_opt

shift $(($OPTIND -1))

# Validate supplied file (server list)
[[ -n $1 && !(-f $1 && -r $1) ]] && { echo "\"$1\" file does not exist or is not readable"; exit 1; }
[[ -n $1 && -f $1 && -r $1 ]] && USER_FILE="$1"

if [[ -n $USER_FILE ]]
then
# Bash 3.x in macOS does not support readarray, need to do cumbersome array loops instead
    while IFS= read -r line; do
        serverList+=( "$line" )
    done < <(grep -e '[[:alpha:]]*[[:alnum:]]\.voip\.ms' $USER_FILE | grep  -v '^\s*#' | awk NF)
else
# N.B. The script looks for the html boldface tags <b> </b> inside a bracket
# If the website alters and the parse fails, manually create the list and
# supply as a script arg (or perhaps update the parsing to work again :)
    while IFS= read -r line; do
        serverList+=( "$line" )
    done < <(curl --silent http://wiki.voip.ms/article/Choosing_Server | \
             grep '(<b>[[:alpha:]]*[[:alnum:]]\.voip\.ms</b>)'         | \
             tr "<>" " " | awk '{print $(NF-3)}'                         )
fi

# Newer voip.ms clients can't register onto these over-subscribed servers
# Don't test the restricted list unless explicitly asked (with the -r cmd line option)
if [[ $RESTRICTED -eq 0 ]]
then
    for server in ${restrictedList[@]}
    do
        ix=$(printf "%s\n" "${serverList[@]}" | grep -n "^${server}" | cut -d ":" -f1)

        while IFS= read -r idx; do
            keys+=($idx)
        done < <([[ $ix -gt 0 ]] && echo $((ix-1)))
    done
    for ((i=${#keys[@]} - 1; i >= 0; i--)); do unset serverList[keys[i]]; done
fi

if [[ ${#serverList[@]} -eq 0 ]]
then
    echo "No unrestricted Voip.ms servers could be found, please supply a server list"
    exit 1
fi

runTime=$(( $COUNT * $INTERVAL * ${#serverList[@]} ))

echo "PING will send $COUNT packet(s) with a wait of $INTERVAL sec(s) between each packet"
echo "Change the PING options by invoking this script with -c and/or -i, default \"-c 3 -i 5\""
echo "Over $((${#serverList[@]})) server(s) the estimated script Run Time will be $runTime seconds"
echo "================================================================"
printf "%-20s %-18s %7s %8s %6s   %s\n" "VoIP Server" "IP Address" "Latency" "Jitter" "Loss" "Countdown"
echo "================================================================  (seconds)"

for myLn in ${serverList[@]}
do
     while IFS=$'\n' read -r line; do
         pingList+=( "$line" )
         printf "%-64s %5d   %2d/%-2d\n" "$line" "$((runTime - $COUNT * $INTERVAL * ${#pingList[@]}))" "${#pingList[@]}" "${#serverList[@]}"
     done < <( ping -c $COUNT -i $INTERVAL -q $myLn | awk '\
        /^PING / {myH=$2}
        /^PING / {
            IP = substr($3,2,15)
            split(IP,myIP,")") }
        /packet loss/ {myPL=$7}
        /min\/avg\/max/ {
            split($4,myS,"/")
            printf("%-20s %-18s %7.3f %8.3f %6s\n",
                    myH, myIP[1], myS[2], myS[4], myPL ) }
    ' )
done

echo "================================================================"
echo -e "\nMost appropriate server listed in order of best latency\n"
echo "================================================================"
printf "%-20s %-18s %7s %8s %6s\n" "VoIP Server" "IP Address" "Latency" "Jitter" "Loss"
echo "================================================================"
printf "%s\n" "${pingList[@]}" | LC_ALL=C sort -n -k 3,3 -k 5,5 -k 4,4 | awk '{printf("%s    \(%2d\)\n",$0, NR)}'
echo "================================================================"

Perl Script

Pings list of voip.ms servers round robin with optional output csv file. 

   # usage ping_voip.ms.pl <number of times> <seconds in between> <output.csv>
   use Net::Ping;
   use Time::HiRes;
   use strict;
   
   # input list 
   my @hosts = qw(
       atlanta.voip.ms
       atlanta2.voip.ms
       chicago.voip.ms
       chicago2.voip.ms
       chicago3.voip.ms
       chicago4.voip.ms
       dallas.voip.ms
       denver.voip.ms
       denver2.voip.ms
       houston.voip.ms
       losangeles.voip.ms
       losangeles2.voip.ms
       newyork.voip.ms
       newyork2.voip.ms
       newyork3.voip.ms
       newyork4.voip.ms
       seattle.voip.ms
       seattle2.voip.ms
       seattle3.voip.ms
       tampa.voip.ms
       washington.voip.ms
       washington2.voip.ms
       montreal.voip.ms
       montreal2.voip.ms
       montreal3.voip.ms
       montreal4.voip.ms
       toronto2.voip.ms
       toronto3.voip.ms
       toronto4.voip.ms
       toronto.voip.ms
       london.voip.ms
   );
   
   $| = 1; #autoflush
   # High precision syntax (requires Time::HiRes)
   my $p = Net::Ping->new("icmp",1);
   $p->hires();
   my $max_name_length = (reverse sort { $a <=> $b } map { length($_) } @hosts)[0];
   my $count = 4; # number of times to ping
   my $interval = 5; # seconds between ping rounds
   my $output_file = "";
   my @data;
   
   # check for arguments
   my $num_args = @ARGV;
   if ($num_args >= 1) {$count = $ARGV[0];}
   if ($num_args >= 2) {$interval = $ARGV[1];}
   if ($num_args >= 3) {$output_file = $ARGV[2];}
   
   # check argument validity
   $0 =~ /^.*\\(.*)$/;
   my $script = $1;
   if ($count !~ /^\d+$/ or $interval !~ /^\d+$/) {die "Usage: $script <number of rounds> <seconds between rounds> <output.csv>\n";}
   if (length($output_file) > 0 and $output_file !~ /\.csv$/) {$output_file .= ".csv";}
   
   # main loop
   for my $i (1..$count)
   {
       sleep $interval unless $i == 1;
       print "Round $i\n";
       my $host_num=0;
       foreach my $host (@hosts)
       {
           (my $ret, my $duration, my $ip) = $p->ping($host);
           $ip =~ /(\d+)\.(\d+)\.(\d+)\.(\d+)/; 
           if ($ret)
           {
               printf("%*s [ip: %3s.%3s.%3s.%3s] is alive (%6.2f ms)\n", $max_name_length, $host, $1, $2, $3, $4, $duration*1000);
               $data[$host_num][$i]=$duration*1000;
           }
           else
           {
               printf("%*s [ip: %3s.%3s.%3s.%3s] is dead\n", $max_name_length, $host, $1, $2, $3, $4);
           }
           $host_num++;
       }
       print "\n";
   }
   $p->close();
   
   # if output file name given
   if (length($output_file)>0)
   {
       # print output to file
       open FILE, ">$output_file" or die "$!\n";
       
       # print column headers
       print FILE "Server\\Round";
       for my $i (1..$count)
       {
           print FILE ", $i";
       }
       print FILE ", Average\n";
       
       # print data
       my $i = 0;
       foreach my $host (@hosts)
       {
           print FILE "$host";
           my $sum = 0;
           for my $j (1..$count)
           {
               $sum += $data[$i][$j];
               printf FILE ", %8.4f",$data[$i][$j];
           }
           printf FILE ", %8.4f\n",$sum/$count;
           $i++;
       }
       
       close FILE;
       print "Data written to $output_file\n";
   }
   
   # print summary to screen
   my $i = 0;
   printf("%-*s Average (ms)\n", $max_name_length, "Server");
   foreach my $host (@hosts)
   {
       my $sum = 0;
       for my $j (1..$count)
       {
           $sum += $data[$i][$j];
       }
       printf("%-*s %8.4f\n", $max_name_length+1, $host, $sum/$count);
       $i++;
   }


Output: 

   Round 1
       atlanta.voip.ms [ip: 174. 34.146.162] is alive ( 88.97 ms)
      atlanta2.voip.ms [ip:  72.  9.246.170] is alive ( 92.99 ms)
       chicago.voip.ms [ip: 208.100. 39. 52] is alive ( 49.70 ms)
      chicago2.voip.ms [ip: 208.100. 39. 53] is alive ( 59.76 ms)
      chicago3.voip.ms [ip: 208.100. 39. 54] is alive ( 59.53 ms)
      chicago4.voip.ms [ip: 208.100. 39. 55] is alive ( 49.73 ms)
        dallas.voip.ms [ip:  74. 54. 54.178] is alive ( 94.99 ms)
        denver.voip.ms [ip: 173.248.161. 90] is alive ( 94.05 ms)
       denver2.voip.ms [ip: 173.248.159.210] is alive ( 85.13 ms)
       houston.voip.ms [ip: 209. 62.  1.  2] is alive (102.87 ms)
    losangeles.voip.ms [ip:  96. 44.149.186] is alive ( 64.92 ms)
   losangeles2.voip.ms [ip:  96. 44.149.202] is alive ( 63.41 ms)
       newyork.voip.ms [ip:  74. 63. 41.218] is alive (131.75 ms)
      newyork2.voip.ms [ip: 107.  6. 67.236] is alive (120.64 ms)
      newyork3.voip.ms [ip: 107.  6. 67.237] is alive (120.49 ms)
      newyork4.voip.ms [ip: 107.  6. 67.238] is alive (111.43 ms)
       seattle.voip.ms [ip:  50. 23.160. 50] is alive ( 94.25 ms)
      seattle2.voip.ms [ip:  50. 23.160. 51] is alive ( 95.86 ms)
      seattle3.voip.ms [ip:  50. 23.160. 52] is alive ( 90.85 ms)
         tampa.voip.ms [ip:  68.233.226. 97] is alive (123.29 ms)
    washington.voip.ms [ip: 208. 43.234.226] is alive ( 98.71 ms)
   washington2.voip.ms [ip: 208. 43.234.227] is alive (101.19 ms)
      montreal.voip.ms [ip:  67.205. 74.184] is alive ( 81.82 ms)
     montreal2.voip.ms [ip:  67.205. 74.187] is alive ( 86.13 ms)
     montreal3.voip.ms [ip:  72. 55.168. 18] is alive ( 77.09 ms)
     montreal4.voip.ms [ip:  67.205. 74.179] is alive ( 96.18 ms)
      toronto2.voip.ms [ip: 184. 75.215.114] is alive (103.70 ms)
      toronto3.voip.ms [ip: 184. 75.215.146] is alive (131.27 ms)
      toronto4.voip.ms [ip: 184. 75.213.210] is alive (125.13 ms)
       toronto.voip.ms [ip: 184. 75.215.106] is alive (103.26 ms)
        london.voip.ms [ip:   5. 77. 36.136] is alive (152.77 ms)
   
   Round 2
       atlanta.voip.ms [ip: 174. 34.146.162] is alive ( 88.14 ms)
      atlanta2.voip.ms [ip:  72.  9.246.170] is alive ( 92.86 ms)
       chicago.voip.ms [ip: 208.100. 39. 52] is alive ( 50.03 ms)
      chicago2.voip.ms [ip: 208.100. 39. 53] is alive ( 59.44 ms)
      chicago3.voip.ms [ip: 208.100. 39. 54] is alive ( 59.33 ms)
      chicago4.voip.ms [ip: 208.100. 39. 55] is alive ( 50.22 ms)
        dallas.voip.ms [ip:  74. 54. 54.178] is alive ( 95.58 ms)
        denver.voip.ms [ip: 173.248.161. 90] is alive ( 95.94 ms)
       denver2.voip.ms [ip: 173.248.159.210] is alive ( 85.29 ms)
       houston.voip.ms [ip: 209. 62.  1.  2] is alive (102.73 ms)
    losangeles.voip.ms [ip:  96. 44.149.186] is alive ( 65.59 ms)
   losangeles2.voip.ms [ip:  96. 44.149.202] is alive ( 64.27 ms)
       newyork.voip.ms [ip:  74. 63. 41.218] is alive (112.74 ms)
      newyork2.voip.ms [ip: 107.  6. 67.236] is alive (121.22 ms)
      newyork3.voip.ms [ip: 107.  6. 67.237] is alive (121.34 ms)
      newyork4.voip.ms [ip: 107.  6. 67.238] is alive (110.75 ms)
       seattle.voip.ms [ip:  50. 23.160. 50] is alive ( 94.06 ms)
      seattle2.voip.ms [ip:  50. 23.160. 51] is alive ( 95.33 ms)
      seattle3.voip.ms [ip:  50. 23.160. 52] is alive ( 91.58 ms)
         tampa.voip.ms [ip:  68.233.226. 97] is alive (122.94 ms)
    washington.voip.ms [ip: 208. 43.234.226] is alive ( 98.28 ms)
   washington2.voip.ms [ip: 208. 43.234.227] is alive (101.40 ms)
      montreal.voip.ms [ip:  67.205. 74.184] is alive ( 81.91 ms)
     montreal2.voip.ms [ip:  67.205. 74.187] is alive ( 85.64 ms)
     montreal3.voip.ms [ip:  72. 55.168. 18] is alive ( 75.15 ms)
     montreal4.voip.ms [ip:  67.205. 74.179] is alive ( 96.79 ms)
      toronto2.voip.ms [ip: 184. 75.215.114] is alive (103.10 ms)
      toronto3.voip.ms [ip: 184. 75.215.146] is alive (150.85 ms)
      toronto4.voip.ms [ip: 184. 75.213.210] is alive (138.40 ms)
       toronto.voip.ms [ip: 184. 75.215.106] is alive (103.45 ms)
        london.voip.ms [ip:   5. 77. 36.136] is alive (170.79 ms)
   
   Round 3
       atlanta.voip.ms [ip: 174. 34.146.162] is alive ( 88.76 ms)
      atlanta2.voip.ms [ip:  72.  9.246.170] is alive ( 92.86 ms)
       chicago.voip.ms [ip: 208.100. 39. 52] is alive ( 49.65 ms)
      chicago2.voip.ms [ip: 208.100. 39. 53] is alive ( 60.01 ms)
      chicago3.voip.ms [ip: 208.100. 39. 54] is alive ( 59.05 ms)
      chicago4.voip.ms [ip: 208.100. 39. 55] is alive ( 49.53 ms)
        dallas.voip.ms [ip:  74. 54. 54.178] is alive ( 95.82 ms)
        denver.voip.ms [ip: 173.248.161. 90] is alive ( 95.02 ms)
       denver2.voip.ms [ip: 173.248.159.210] is alive ( 85.60 ms)
       houston.voip.ms [ip: 209. 62.  1.  2] is alive (103.35 ms)
    losangeles.voip.ms [ip:  96. 44.149.186] is alive ( 65.79 ms)
   losangeles2.voip.ms [ip:  96. 44.149.202] is alive ( 64.05 ms)
       newyork.voip.ms [ip:  74. 63. 41.218] is alive (113.01 ms)
      newyork2.voip.ms [ip: 107.  6. 67.236] is alive (121.41 ms)
      newyork3.voip.ms [ip: 107.  6. 67.237] is alive (122.23 ms)
      newyork4.voip.ms [ip: 107.  6. 67.238] is alive (110.62 ms)
       seattle.voip.ms [ip:  50. 23.160. 50] is alive ( 93.65 ms)
      seattle2.voip.ms [ip:  50. 23.160. 51] is alive ( 95.19 ms)
      seattle3.voip.ms [ip:  50. 23.160. 52] is alive ( 90.75 ms)
         tampa.voip.ms [ip:  68.233.226. 97] is alive (125.12 ms)
    washington.voip.ms [ip: 208. 43.234.226] is alive ( 98.19 ms)
   washington2.voip.ms [ip: 208. 43.234.227] is alive (101.98 ms)
      montreal.voip.ms [ip:  67.205. 74.184] is alive ( 80.16 ms)
     montreal2.voip.ms [ip:  67.205. 74.187] is alive ( 87.16 ms)
     montreal3.voip.ms [ip:  72. 55.168. 18] is alive ( 76.54 ms)
     montreal4.voip.ms [ip:  67.205. 74.179] is alive ( 97.51 ms)
      toronto2.voip.ms [ip: 184. 75.215.114] is alive (104.18 ms)
      toronto3.voip.ms [ip: 184. 75.215.146] is alive (142.81 ms)
      toronto4.voip.ms [ip: 184. 75.213.210] is alive (138.95 ms)
       toronto.voip.ms [ip: 184. 75.215.106] is alive (103.78 ms)
        london.voip.ms [ip:   5. 77. 36.136] is alive (153.14 ms)
   
   Round 4
       atlanta.voip.ms [ip: 174. 34.146.162] is alive ( 89.19 ms)
      atlanta2.voip.ms [ip:  72.  9.246.170] is alive ( 92.98 ms)
       chicago.voip.ms [ip: 208.100. 39. 52] is alive ( 49.21 ms)
      chicago2.voip.ms [ip: 208.100. 39. 53] is alive ( 60.50 ms)
      chicago3.voip.ms [ip: 208.100. 39. 54] is alive ( 59.68 ms)
      chicago4.voip.ms [ip: 208.100. 39. 55] is alive ( 50.18 ms)
        dallas.voip.ms [ip:  74. 54. 54.178] is alive ( 93.93 ms)
        denver.voip.ms [ip: 173.248.161. 90] is alive ( 94.22 ms)
       denver2.voip.ms [ip: 173.248.159.210] is alive ( 85.10 ms)
       houston.voip.ms [ip: 209. 62.  1.  2] is alive (103.67 ms)
    losangeles.voip.ms [ip:  96. 44.149.186] is alive ( 65.58 ms)
   losangeles2.voip.ms [ip:  96. 44.149.202] is alive ( 63.60 ms)
       newyork.voip.ms [ip:  74. 63. 41.218] is alive (114.76 ms)
      newyork2.voip.ms [ip: 107.  6. 67.236] is alive (120.44 ms)
      newyork3.voip.ms [ip: 107.  6. 67.237] is alive (121.05 ms)
      newyork4.voip.ms [ip: 107.  6. 67.238] is alive (110.51 ms)
       seattle.voip.ms [ip:  50. 23.160. 50] is alive ( 94.04 ms)
      seattle2.voip.ms [ip:  50. 23.160. 51] is alive ( 96.92 ms)
      seattle3.voip.ms [ip:  50. 23.160. 52] is alive ( 91.23 ms)
         tampa.voip.ms [ip:  68.233.226. 97] is alive (123.28 ms)
    washington.voip.ms [ip: 208. 43.234.226] is alive ( 98.45 ms)
   washington2.voip.ms [ip: 208. 43.234.227] is alive (100.94 ms)
      montreal.voip.ms [ip:  67.205. 74.184] is alive ( 82.33 ms)
     montreal2.voip.ms [ip:  67.205. 74.187] is alive ( 85.02 ms)
     montreal3.voip.ms [ip:  72. 55.168. 18] is alive ( 76.85 ms)
     montreal4.voip.ms [ip:  67.205. 74.179] is alive ( 96.32 ms)
      toronto2.voip.ms [ip: 184. 75.215.114] is alive (104.22 ms)
      toronto3.voip.ms [ip: 184. 75.215.146] is alive (148.33 ms)
      toronto4.voip.ms [ip: 184. 75.213.210] is alive (141.61 ms)
       toronto.voip.ms [ip: 184. 75.215.106] is alive (105.91 ms)
        london.voip.ms [ip:   5. 77. 36.136] is alive (152.85 ms)
   
   Server              Average (ms)
   atlanta.voip.ms       88.7630
   atlanta2.voip.ms      92.9233
   chicago.voip.ms       49.6477
   chicago2.voip.ms      59.9305
   chicago3.voip.ms      59.3972
   chicago4.voip.ms      49.9152
   dallas.voip.ms        95.0790
   denver.voip.ms        94.8077
   denver2.voip.ms       85.2797
   houston.voip.ms      103.1562
   losangeles.voip.ms    65.4693
   losangeles2.voip.ms   63.8347
   newyork.voip.ms      118.0643
   newyork2.voip.ms     120.9265
   newyork3.voip.ms     121.2778
   newyork4.voip.ms     110.8275
   seattle.voip.ms       93.9993
   seattle2.voip.ms      95.8267
   seattle3.voip.ms      91.1035
   tampa.voip.ms        123.6570
   washington.voip.ms    98.4065
   washington2.voip.ms  101.3774
   montreal.voip.ms      81.5525
   montreal2.voip.ms     85.9863
   montreal3.voip.ms     76.4058
   montreal4.voip.ms     96.7013
   toronto2.voip.ms     103.7986
   toronto3.voip.ms     143.3156
   toronto4.voip.ms     136.0254
   toronto.voip.ms      104.1012
   london.voip.ms       157.3885

Powershell 

Dec 2017 - A bug in the code shown washington2.voip.ms as the best server, this was corrected.

# Usage: Copy and paste the following code into a powershell window
# To run it from a command prompt, save this file with extension ps1. 
# Then run Powershell.exe -file "pathtothisscript.ps1"
Clear-Variable best* -Scope Global #Clear the best* variables in case you run it more than once...
#Get the list of servers into an array
$Servers =      
@("amsterdam.voip.ms","atlanta.voip.ms","atlanta2.voip.ms","chicago.voip.ms","chicago2.voip.ms","chicago3.voip.ms",
"chicago4.voip.ms","dallas.voip.ms","dallas2.voip.ms","denver.voip.ms","denver2.voip.ms","houston.voip.ms",
"houston2.voip.ms","london.voip.ms","losangeles.voip.ms","losangeles2.voip.ms","melbourne.voip.ms","montreal.voip.ms",
"montreal2.voip.ms","montreal3.voip.ms","montreal4.voip.ms","montreal5.voip.ms","montreal6.voip.ms","montreal7.voip.ms",
"montreal8.voip.ms","newyork.voip.ms","newyork2.voip.ms","newyork3.voip.ms","newyork4.voip.ms","newyork5.voip.ms",
"newyork6.voip.ms","newyork7.voip.ms","newyork8.voip.ms","paris.voip.ms","sanjose.voip.ms","sanjose2.voip.ms",
"seattle.voip.ms","seattle2.voip.ms","seattle3.voip.ms","tampa.voip.ms","tampa2.voip.ms","toronto.voip.ms",
"toronto2.voip.ms","toronto3.voip.ms","toronto4.voip.ms","toronto5.voip.ms","toronto6.voip.ms","toronto7.voip.ms",
"toronto8.voip.ms","vancouver.voip.ms","vancouver2.voip.ms","washington.voip.ms","washington2.voip.ms")
$k = 0 #Counting variable so we know what server number we are testing
#num of servers to test
$servercount = $servers.length 
#Do the following code for each server in our array
ForEach($server in $servers)
{  
  #Add one to the counting variable....we are on server #1...then server 2, then server 3 etc...
  $k++
  #Update the progress bar                    
  Write-Progress -Activity "Testing Server: ${server}" -status "Testing Server $k out of $servercount" -percentComplete ($k / $servercount*100) 
  #Counting variable for number of times we tried to ping a given server
  $i = 0
  Do{
     #assume a failure
     $pingsuccess = $false 
     $i++ #Add one to the counting variable.....1st try....2nd try....3rd try etc...
     Try{
         #Try to ping
         $currentping = (test-connection $server -count 1 -ErrorAction Stop).responsetime 
         #If success full, set success variable
         $pingsuccess = $true
     }
     #Catch the failure and set the success variable to false
     Catch {
      $pingsuccess = $false 
      }     
  }
  #Try everything between Do and While up to 5 times, or while $pingsuccess is not true
  While($pingsuccess -eq $false -and $i -le 5) 
  #Compare the last ping test with the best known ping test....if there is no known best ping test, assume this one is the best $bestping = $currentping 
  If($pingsuccess -and ($currentping -lt $bestping -or (!($bestping)))){ 
  #If this is the best ping...save it
        $bestserver = $server    #Save the best server
        $bestping = $currentping #Save the best ping results
  }
  write-host "tested: $server at $currentping ms after $i attempts" #write the results of the test for this server
}
write-host "`r`n The server with the best ping is: $bestserver at $bestping ms`r`n" #write the end result
Pause

Linux Shell Script

Pings several voip.ms servers 

  #!/bin/sh
  # Ping several servers and display Latency, Jitter and Packet Loss 
  #
  # First, create a text file with all servers you want to ping - one host name per line. 
  # The list of voip.ms servers is available at http://wiki.voip.ms/article/Choosing_Server
  myHF="voip_ping_hosts.txt"
  # Sample file:
  #    toronto.voip.ms
  #    montreal.voip.ms
  #    seattle.voip.ms
  #    chicago.voip.ms
  #    newyork.voip.ms
  #
  echo "============================================"
  printf "%-20s %7s %8s %6s\n" "VoIP Server" "Latency" "Jitter" "Loss"
  echo "============================================"
  cat ${myHF} |\
  while read myLn
  do
     ping -c 3 -i 5 -q $myLn |\
     awk '/^PING / {myH=$2}
          /packet loss/ {myPL=$6}
          /min\/avg\/max/ {
             split($4,myS,"/")
             printf( "%-20s    %3.1f    %1.3f   %4s\n", myH, myS[2], myS[4], myPL)
         }'
  done
  echo "============================================"

Output: 

  ============================================
  VoIP Server          Latency   Jitter   Loss
  ============================================
  toronto.voip.ms         68.3    0.439     0%
  montreal.voip.ms        89.6    0.197     0%
  seattle.voip.ms         71.2    0.387     0%
  chicago.voip.ms         71.6    0.084     0%
  newyork.voip.ms         79.1    0.411     0%
  ============================================

Latency and its importance

Latency is very important for Voip, this will determine the time that will take for the data package transmission to reach the destination. A high latency will lead to a delay and echoes in the communication.

Latency is measured in milliseconds (ms) For example: a latency of 150ms is barely noticeable, thus acceptable. Higher than that, quality starts to suffer. When it gets higher than 300 ms, it becomes unacceptable.

Retrieved from "https://wiki.voip.ms/article/User:Joseph.voip.ms/Sandbox"
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