[Asterisk-Users] DVG-1120 questions

[lists at spirestudios.com]

I upgraded a DVG-1120M to a DVG-1120S.  Everything works great, but I'm
having some caller ID issues on incoming calls sent to the SIP device. 
Using debug on the device, the caller ID looks fine - just as I set it in
Asterisk.  However, the phone is showing "CID TRANSMISSION ERROR".  Should
I check the RX and TX gain levels?  Try another phone?  Any ideas would be
much appreciated.