SIP phone can no longer make calls through OBI GV

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azrobert:
Look at the OBi200 Call History.
Do you see an entry when the inbound route was set to just "sp1" ?

If you don't see an entry, the call isn't getting to the OBi200.

To access Call History:
Log directly into the OBi using the local interface.
Key the IP address of the OBi into a Web Browser and hit Enter
The UserID and default Password are both "admin".
Click Status on the left column then click Call History.

TSObi2:
Here is what the log says:
05/21/2018    22:55:39   
22:55:39   From 'tom' SP2(tom)   To SP1([number removed])
22:55:40      Call Ended (488 Not Acceptable Here)

azrobert:
See:
http://www.obitalk.com/forum/index.php?topic=13489.msg89474#msg89474

TSObi2:
That thread helped.  Thank you very much!

Apparently the new firmware update really changed SIP phone compatibility settings, but I finally got it working.  It seems some new settings were added into the firmware update and values of some existing ones were changed.  It took a bunch of tinkering to even get the call into the Obi's call history and get the 488 error.  In any event, in my instance, I never had the proxy or registration enabled so those settings didn't matter.  Just in case it'll help anyone else, I had to do the following to my configuration for SP2 (where I accept incoming SIP connections to forward to my GV on SP1):
Uncheck X_RegisterEnableUncheck X_EnforceRequestUserIDAdd a password in AuthPassword
Then on my SIP phone I had to:
Force use of G711u (on a Linksys/Cisco SPA you need to select it as preferred and then set the "Use preferred codec only" setting)Configure the password set in AuthPassword for my Obi SP2 settings referenced above
I was able to set my inbound call route back to what I had and it works now just as it had before.  Also, it seems the inbound default SIP port for SP2 was changed by the firmware from 5061 to 5081.  Not a big deal - easy to change on the SIP phone or on the Obi.

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