Cisco Linksys PAP2T - Wiki

Cisco Linksys PAP2T

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Cisco Linksys PAP2T


If you are running the PAP2t with a tomato firmware router, this may represent a persistent issue after
rebooting the device, generally it won't register back as usual, in order to fix this you only need to set
Tomato UDP Unreplied timeout down to 10 (from default of 30).

Configuration Details

Step 1

The first step is to find out what IP Address your adapter is currently using. To do this, pick a phone connected on Line 1 and do the following:

Dial: **** (That is 4 asterisks)
Once this is done, dial: 110# (110 followed by a square)

The system should now playback the IP Address your device has been assigned.

Step 2

Using your favorite web browser from a computer on the same network, point the address to the IP address of your adapter.
(example Replace by the IP Address your device is currently using.

Step 3

You should now see the web interface of your Linksys/Sipura.

At the top of the page below the tabs, click on the link "Admin", and once the page has reloaded, click again on the link "Advanced View".

Step 4

Under the LINE 1 Tab, Find the following fields and fill them with the following information

Nat Keep Alive: Yes
Nat Mapping/Traversal: Yes
Proxy: (You can choose any of our multiple servers)
Register Expires: 180
Proxy Fallback Intvl: 180
Display Name: John Smith (Replace with your name or company name)
User ID: 100000 (Replace with your username)
Password: ******** (Type in the account password)
DNS SRV Auto Prefix: NO

Step 5 (Optional)

Optionally, you can configure your adapter with a better dial plan, allowing faster dialing of 10 digits number (Local US/Canada) and also enable 7 digits dialing in one area code of your choice.

At the bottom of Line 1 TAB, you will find a field called Dial Plan

Replace the 555 digits in the following line by the area code of your choice and copy the line, including parenthesis, in the Dialplan field in Line 1 Tab at the bottom of the page:


Step 6

Click on the "Save Settings " button at the bottom of the form.

Configuration Screens

PAP2T Configuration Screen

PAP2T Configuration Screen

PAP2T Configuration Screen

Customer Submitted Information:
For North America:
Found this link on configuring the PAP2-NA hardware to work better in North America and specifically with
Read the article called: Configure your Linksys VoIP ATA the right way!

To upgrade a firmware version from a Windows system, the PAP2T-NA documentation nor Cisco's web site does not say how to do this. Go to Cisco PAP2T Internet Phone Adapter with 2 VoIP Ports. Click on the link "Download Firmware", which downloads the .zip file. Run the .exe file, then enter the IP number of the ATA device (called “SPA” in the program). It then upgrades the device. This is provided for your information: the author is not saying you have to upgrade the firmware.

How to avoid the long delay to hear the ringtone

If you ever experience some delay to hear the ringtone when you make outgoing calls with your PAP2T. Changing the PAP2T's Interdigit Long Timer value can help resolve the issue. Follow the next steps in order to change that setting:

Note: However before changing that option, test if calling the number with an # at the end of the number works(e.g. 5554441234#). 
      If that doesn't work you need to contact the support staff in



Ctrl timer values.jpg

Linksys PAP2T ATA Adapter Reset Procedure

Sometimes it will be very helpful to reset your linksys ATA adapter to factory default settings.


(This number spells RESET.)

Your linksys ATA unit will now go back to it factory default settings.

Note: There are some PAP2/PAP2T devices in circulation which were originally 'locked' to one provider and subsequently unlocked by end users. Do *not* use the RESET$ command with these boxes.

See also

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