internet phone service

The Linksys PAP2 is a reliable inexpensive telephone adapter that works with the Callcentric service when placed behind your broadband internet router.

Most other Linksys and Sipura VoIP products (such as the SPA-xxxx series) are based on the same software as the Linksys PAP2; so you may also use the PAP2 setup guide to assist you with those products as well.

The information below is based on the PAP2 firmware version 3.1.3(LS); although most other older and newer versions will look very similar.

CONFIGURING THE Linksys PAP2

These instructions are based on using the PAP2 in its factory default configuration which is to obtain a dynamic IP address automatically from your router using DHCP, which is how most people have their home routers configured. For information on configuring your PAP2 with a static IP address, please refer to the PAP2 user manual.

We recommend that you read each step through in its entirety before performing the action indicated in the step.

STEP 1

Connect your router with the supplied Ethernet network cable to the PAP2. Now connect your phone to the PAP2 Line 1 port. Finally plug the supplied power cable into the PAP2.

STEP 2

Wait 60 seconds after plugging your PAP2 in.

STEP 3

Pickup the phone connected to the PAP2 and dial the * key on your phone 4 times.

STEP 4

Have a pen and paper ready. You will hear a message - "Configuration menu. Please enter option followed by the pound key...", then enter 1 1 0 # on your phone. You will now hear a message giving you the IP address of your PAP2 such as - "192.168.1.100 write this number down.

STEP 5

Open a web browser on your computer such as Internet Explorer and enter the IP address you heard in step 4 as the address (I.E. where you would normally enter www.yahoo.com).
Please note: some browsers will require you to remove leading zero's ( 0 's ) in the IP address. For example if you heard "192.168.001.010" you should change this to "192.168.1.10".

STEP 6

Please note, the PAP2 by default does not have a password assigned to it, so you should now see a page that looks like this:

If you are prompted to enter the username and password please enter it and you should see the image above.

STEP 7

Now click on the "Admin Login" link as indicated in the picture below:

STEP 8

Now click on the "(switch to advanced view)" link as indicated in the picture below:

STEP 9

Click the tab labeled "System" in the menu at the top:

STEP 10

Enter time servers and DNS servers as indicated below:

Set your Primary DNS server to a public DNS server such as 208.67.222.222. You can also set your Secondary DNS server to a public DNS server such as 208.67.222.220
Set your Primary NTP Server to 0.pool.ntp.org, or your preferred working NTP server. You can also add a Secondary NTP Server if you wish

Click the "Save Settings" button after you have entered the time servers. The web page will display a screen for a few seconds stating that it is saving the changes you made.

STEP 11

Click on the SIP tab from the main menu.

Scroll down to SDP Payload Types section.

Set the following values:

RTP Packet Size: 0.020
G729a Codec Name: G729
G729b Codec Name: G729

Click the "Save Settings" button once you are done to save these changes.

STEP 12

Click the tab labeled "Regional" in the menu at the top. You will now be shown the Regional page. Scroll to the bottom of the Regional page. In the "Time Zone" field select the number of hours plus or minus that your local time is offset from Greenwich Mean Time (GMT).

Click the "Save Settings" button after you have selected the time zone.

STEP 13

Below we outline the steps assuming the use of Line 1.

Note: Now we will setup the line you will use Callcentric with. Normally if you are using the PAP2 only with Callcentric you would use Line 1 by clicking the "Line 1" tab which is how the example below is shown. If you already have another provider configured on Line 1, use Line 2 instead by clicking the "Line 2" tab. You may also configure Callcentric on both Line 1 and Line 2 by first setting up Line 1 following the directions below; and then repeating the step identically but in the "Line 2" tab.

Click the tab labeled "Line 1"

STEP 14

Within the Line 1 page is where most of the settings will be configured. Below is a list of the settings that need to be changed from the default configuration; you can click the screenshot below to see the full page of settings in detail.

NAT SETTINGS
NAT Mapping Enable	yes
NAT Keep Alive Enable	yes
PROXY AND REGISTRATION
Proxy	Enter sip.callcentric.net in this field
Outbound Proxy	Enter sip.callcentric.net in this field
Use Outbound Proxy	yes
Use DNS SRV	yes
DNS SRV Auto Prefix	yes
SUBSCRIBER INFORMATION
User ID	This is either the default extension 1777MYCCID OR 1777MYCCIDEXT, where 1777MYCCID is the 1777 number assigned to you by Callcentric and EXT is the three digit extension you are trying to register this UA to. For example: 17770001234101 would register to extension 101 on account 17770001234. You cannot register to your account using only the extension number.
Password	Enter your extension SIP Password here. Your extension SIP password is the password you created for the extension you are trying to use. You may edit the SIP password you wish to use in by logging into your My Callcentric account and clicking on the Extension menu link and then modifying the appropriate extension.
Auth ID	This is either the default extension 1777MYCCID OR 1777MYCCIDEXT, where 1777MYCCID is the 1777 number assigned to you by Callcentric and EXT is the three digit extension you are trying to register this UA to. For example: 17770001234101 would register to extension 101 on account 17770001234. You cannot register to your account using only the extension number.
Use Auth ID	yes
AUDIO CONFIGURATION
Preferred Codec	G711u
DTMF Tx Method	Auto
DIAL PLAN
Within the Dial Plan delete ALL of the current setting and replace it with the following by copying the text below and pasting it into the Dial Plan field: (xx.\|xxx\|75xx\|[3469]11\|0\|00\|1xxx[2-9]xxxxxxS0\|xxxxxxxxxxxx.\|275x.)

Click here to see the PAP2/Version 3 firmware picture
Click here to see the PAP2T/Version 5 firmware picture

Click the "Save Settings" button after you have finished entering all information on the Line 1 page.

STEP 15

At this point your PAP2 should be registered (connected) to our servers. You can verify that your PAP2 is successfully setup in ANY of the following ways:

Click the "Info" tab in the top menu. Under the "Line 1 Status" section on the Info page you should see "Online" next to the "Registration State" field.
The light next to the Line 1 on the front of your PAP should be on.
You should have dial tone on Line 1 when you pickup the phone.

If you do not see your PAP2 as registered, you should re-verify all steps in the setup process above. Make sure you have entered all settings correctly.

STEP 16

That's it! You can now make a phone call.

You can make a test call to 17771234567, or if you are signed up for one of Callcentric's rate plans you can place a call to a traditional landline or mobile phone by dialing either:
1 + the area code and number for calls to the US
Or
011 + the country code, area code, and number for calls worldwide (you may also use 00 instead of 011).