Obtaining the SIP credentials for a CIA
(3web) account
First, login to your CIA account (at
http://myaccount.cia.com), find the CIA Home Phone section and click
Register/ Update My Voice Terminal.

In the next page, enter the MAC address of your VoIP adapter, select the
checkbox next to I agree to the End User Agreement and click Submit
MAC Address. Note: the MAC address doesn't even have to be the actual MAC
address of your adapter. You can enter any 12 digits you want, as long as you
use the same numbers in the next step.

Now open a browser (Internet Explorer or Firefox) and enter the following URL:
http://voip.cia.com/provision.php?MAC=001122334455
(replace 001122334455
with the MAC address you used in the previous step). An XML configuration file
will open up in your browser.

Scroll down the page until you see <!-- Start Line 1 --> like in the
screenshot above. There are 3 settings you will need from the page: the SIP
Proxy (Proxy_1_), the SIP User ID (User_ID_1_, normally the phone
number) and the SIP password (Password_1_). If the User_ID shows the MAC
address of the device instead of your CIA phone number, the CIA servers haven’t
acknowledged your MAC address yet. Wait a few minutes and try again, otherwise
call their tech support.