I just purchased a new Snom 821. I've got 3 sip accounts that I have been using for over 3 years without any problems with my old Grandstream Phone and my Android phone.
My sipgate.de and fairytel.at accounts work just fine.
But my dialnow.com account is giving me a headake.
Registration works just fine, but I can't make a call.
The only difference that I've found is that the dialnow registrar replies with a 401 instead of a 407 (sipgate/fairytel) authentication challenge to the INVITE. The phone resends the invite a few times, but does not recieve an answer from the server.
I'm behind a NAT, so I tried using a stun server, although I never had to use one with my old phone, but that did not help either.
I'm using Firmware Version snom821-SIP 8.7.5.35. Attached is the SIP Trace and the Log (with the usernames and phone numbers redacted).
Martin Heimlich
Hi,
I just purchased a new Snom 821. I've got 3 sip accounts that I have been using for over 3 years without any problems with my old Grandstream Phone and my Android phone.
My sipgate.de and fairytel.at accounts work just fine.
But my dialnow.com account is giving me a headake.
Registration works just fine, but I can't make a call.
The only difference that I've found is that the dialnow registrar replies with a 401 instead of a 407 (sipgate/fairytel) authentication challenge to the INVITE. The phone resends the invite a few times, but does not recieve an answer from the server.
I'm behind a NAT, so I tried using a stun server, although I never had to use one with my old phone, but that did not help either.
I'm using Firmware Version snom821-SIP 8.7.5.35. Attached is the SIP Trace and the Log (with the usernames and phone numbers redacted).
Any help would be greatly appreciated! Thanks,
Martin
I just found the answer to my problem here: http://www.ip-phone-forum.de/showthread.php?t=226627
Just disable RTP Encryption and everything works fine!
Martin Heimlich
I just found the answer to my problem here: http://www.ip-phone-forum.de/showthread.php?t=226627
Just disable RTP Encryption and everything works fine!
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