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| - | [[File:Serverlocation3.png]]
| + | #REDIRECT [[servers]] |
| - | | + | |
| - | = Choosing a Server =
| + | |
| - | | + | |
| - | [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.
| + | |
| - | | + | |
| - | === IPs ===
| + | |
| - | | + | |
| - | *Amsterdam, NL ('''amsterdam.voip.ms''') 37.58.88.242
| + | |
| - | *Atlanta 1, GA ('''atlanta.voip.ms''') 75.127.65.130
| + | |
| - | *Atlanta 2, GA ('''atlanta2.voip.ms''') 72.9.246.170
| + | |
| - | *Chicago 1, IL ('''chicago.voip.ms''') 208.100.39.52
| + | |
| - | *Chicago 2, IL ('''chicago2.voip.ms''') 208.100.39.53
| + | |
| - | *Chicago 3, IL ('''chicago3.voip.ms''') 208.100.39.54
| + | |
| - | *Chicago 4, IL ('''chicago4.voip.ms''') 208.100.39.55
| + | |
| - | *Dallas, TX ('''dallas.voip.ms''') 158.85.149.162
| + | |
| - | *Dallas 2, TX ('''dallas2.voip.ms''') 158.85.149.163
| + | |
| - | *Denver 1, CO ('''denver.voip.ms''') 173.248.161.90
| + | |
| - | *Denver 2, CO ('''denver2.voip.ms''') 173.248.159.210
| + | |
| - | *Houston, TX ('''houston.voip.ms''') 173.193.85.18
| + | |
| - | *Houston 2, TX ('''houston2.voip.ms''') 173.193.85.19
| + | |
| - | *London, UK ('''london.voip.ms''') 159.8.157.212
| + | |
| - | *Los Angeles 1, CA ('''losangeles.voip.ms''') 96.44.149.186
| + | |
| - | *Los Angeles 2, CA ('''losangeles2.voip.ms''') 96.44.149.202
| + | |
| - | *Melbourne, AU ('''melbourne.voip.ms''') 168.1.73.84
| + | |
| - | *Montreal 1, QC ('''montreal.voip.ms''') 67.205.74.184
| + | |
| - | *Montreal 2, QC ('''montreal2.voip.ms''') 67.205.74.187
| + | |
| - | *Montreal 3, QC ('''montreal3.voip.ms''') 192.175.96.68
| + | |
| - | *Montreal 4, QC ('''montreal4.voip.ms''') 67.205.74.179
| + | |
| - | *Montreal 5, QC ('''montreal5.voip.ms''') 192.175.96.69
| + | |
| - | *Montreal 6, QC ('''montreal6.voip.ms''') 192.175.96.70
| + | |
| - | *Montreal 7, QC ('''montreal7.voip.ms''') 192.175.96.71
| + | |
| - | *Montreal 8, QC ('''montreal8.voip.ms''') 192.175.96.72
| + | |
| - | *New York 1, NY ('''newyork.voip.ms''') 74.63.41.218
| + | |
| - | *New York 2, NY ('''newyork2.voip.ms''') 107.6.67.236
| + | |
| - | *New York 3, NY ('''newyork3.voip.ms''') 107.6.67.237
| + | |
| - | *New York 4, NY ('''newyork4.voip.ms''') 107.6.67.238
| + | |
| - | *New York 5, NY ('''newyork5.voip.ms''') 23.29.136.28
| + | |
| - | *New York 6, NY ('''newyork6.voip.ms''') 23.29.136.29
| + | |
| - | *New York 7, NY ('''newyork7.voip.ms''') 23.29.136.38
| + | |
| - | *New York 8, NY ('''newyork8.voip.ms''') 23.29.136.40
| + | |
| - | *Paris, FR ('''paris.voip.ms''') 159.8.85.180
| + | |
| - | *San Jose, CA ('''sanjose.voip.ms''') 23.246.247.146
| + | |
| - | *San Jose 2, CA ('''sanjose2.voip.ms''') 23.246.247.147
| + | |
| - | *Seattle 1, WA ('''seattle.voip.ms''') 50.23.160.53
| + | |
| - | *Seattle 2, WA ('''seattle2.voip.ms''') 50.23.149.166
| + | |
| - | *Seattle 3, WA ('''seattle3.voip.ms''') 50.23.160.54
| + | |
| - | *Tampa, FL ('''tampa.voip.ms''') 162.254.144.173
| + | |
| - | *Tampa 2, FL ('''tampa2.voip.ms''') 162.254.144.176
| + | |
| - | *Toronto 1, ON ('''toronto.voip.ms''') 158.85.70.148
| + | |
| - | *Toronto 2, ON ('''toronto2.voip.ms''') 158.85.70.149
| + | |
| - | *Toronto 3, ON ('''toronto3.voip.ms''') 158.85.70.150
| + | |
| - | *Toronto 4, ON ('''toronto4.voip.ms''') 158.85.70.151
| + | |
| - | *Toronto 5, ON ('''toronto5.voip.ms''') 184.75.215.106
| + | |
| - | *Toronto 6, ON ('''toronto6.voip.ms''') 184.75.215.114
| + | |
| - | *Toronto 7, ON ('''toronto7.voip.ms''') 184.75.215.146
| + | |
| - | *Toronto 8, ON ('''toronto8.voip.ms''') 184.75.213.210
| + | |
| - | *Vancouver 1, BC ('''vancouver.voip.ms''') 162.213.157.82
| + | |
| - | *Vancouver 2, BC ('''vancouver2.voip.ms''') 162.213.157.117
| + | |
| - | *Washington 1, DC ('''washington.voip.ms''') 208.43.234.226
| + | |
| - | *Washington 2, DC ('''washington2.voip.ms''') 208.43.234.227
| + | |
| - | | + | |
| - | ===Server Realms===
| + | |
| - | | + | |
| - | For IOS, 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]]
| + | |
| - | | + | |
| - | ==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) =
| + | |
| - | <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 ===
| + | |
| - | | + | |
| - | <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)
| + | |
| - | | + | |
| - | # Handle any passed in script arguments
| + | |
| - | while getopts c:i:r parm
| + | |
| - | do
| + | |
| - | case $parm in
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| - | c)count_opt=$OPTARG;;
| + | |
| - | i)interval_opt=$OPTARG;;
| + | |
| - | r)RESTRICTED=1;;
| + | |
| - | *)echo -e "Invalid arg\nUsage:\t[ -c <count of ECHO_REQUESTs to Tx, default 3> ] \
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| - | \n\t[ -i <wait time (s) between datagrams, default 5> ] \
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| - | \n\t[ -r ] Include restricted servers in latency test \
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| - | \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
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| - | [[ -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 "================================================================"
| + | |
| - | </pre>
| + | |
| - | | + | |
| - | === 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 ===
| + | |
| - | | + | |
| - | This code was optimized by a Customer (Jean Lem), server's list was also updated.
| + | |
| - | | + | |
| - | <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"
| + | |
| - | #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){
| + | |
| - | $k++ #Add one to the counting variable....we are on server #1...then server 2, then server 3 etc...
| + | |
| - | Write-Progress -Activity "Testing Server: ${server}" -status "Testing Server $k out of $servercount" -percentComplete ($k /
| + | |
| - | $servercount*100) #Update the progress bar
| + | |
| - | $i = 0 #Counting variable for number of times we tried to ping a given server
| + | |
| - | Do{
| + | |
| - | $pingsuccess = $false #assume a failure
| + | |
| - | $i++ #Add one to the counting variable.....1st try....2nd try....3rd try etc...
| + | |
| - | Try{
| + | |
| - | $currentping = (test-connection $server -count 1 -ErrorAction Stop).responsetime #Try to ping
| + | |
| - | $pingsuccess = $true #If success full, set success variable
| + | |
| - | }Catch { $pingsuccess = $false } #Catch the failure and set the success variable to false
| + | |
| - | }While($pingsuccess -eq $false -and $i -le 5) #Try everything between Do and While up to 5 times, or while $pingsuccess is not true
| + | |
| - | If($pingsuccess -and ($currentping -lt $bestping -or (!($bestping)))){ #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 this is the best ping...save it
| + | |
| - | $bestserver = $server #Save the best server
| + | |
| - | }
| + | |
| - | write-host "tested: $server at $currentping ms after $i attempts" #write the results of the test for this server
| + | |
| - | }
| + | |
| - | write-host "The server with the best ping is: $bestserver at $bestping ms" #write the end result
| + | |
| - | Pause
| + | |
| - | </pre>
| + | |
| - | | + | |
| - | === 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.
| + | |
| - | | + | |
| - | [[category:guides]]
| + | |
