I currently am using a SPA112 to connect an analog phone to a remote VoIP phone system, there are 2 modes in which this phone system will operate, normal mode and extension mode. Extension mode allows you to use a much greater amount of extension numbers which is why I am using it, but there lies my dilemma.
The user ID for the phone system changes depending on what mode your in, for example...
Normal mode - 15000
Extension mode - *15000
The asterisk in front of the user ID is what I have found to be causing the issue, the SPA will register and work flawlessly while the phone system is in normal mode, but as soon as I switch to extension mode the SPA will no longer even register, I have tried the user ID on the SPA setup with and without the asterisk. I was on version 1.2.1 then upgraded to 1.3.3 and still had no luck.
My guess is the SPA is simply ignoring the asterisk I put in-front of the user ID. Any help will be much appreciated.
Catch the SIP packets from the ATA to your phone system. The catched REGISTER packet will reveal us if requested user id is used, or '*' become swallowed. And the phone system response to such REGISTER packet may disclose the reason for failed registration ...
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