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+---- Thread: Yealink T22 RTPMAP Payload Mismatch (/showthread.php?tid=2216)
Yealink T22 RTPMAP Payload Mismatch - Terry - 08-08-2014 07:30 PM
Hi,
We have a couple of T22's (firmware 7.70.23.10) which appear to be be using the wrong codec for calls. In the autop file we have
account.1.codec.1.enable = 1
account.1.codec.1.payload_type = PCMA
account.1.codec.1.priority = 0
account.1.codec.1.rtpmap = 8
account.1.codec.2.enable = 1
account.1.codec.2.payload_type = G729
account.1.codec.2.priority = 1
account.1.codec.2.rtpmap = 18
But in the SDP for an outbound call invite I get:
v=0
o=- 20018 20018 IN IP4 192.168.88.64
s=SDP data
c=IN IP4 192.168.88.64
t=0 0
m=audio 11790 RTP/AVP 18 0 4 101
a=rtpmap:18 PCMA/8000
a=rtpmap:0 G729/8000
It should be:
v=0
o=- 20003 20003 IN IP4 192.168.88.92
s=SDP data
c=IN IP4 192.168.88.92
t=0 0
m=audio 11786 RTP/AVP 8 18 4 101
a=rtpmap:8 PCMA/8000
a=rtpmap:18 G729/8000
If I reset and reprovision the phone it will work again as expected but only for a day or so. There are 15 other T22's at this site using the same autoprovision template and firmware and they have no issues.
What can be causing the rtpmap payload mismatch?
TIA
RE: Yealink T22 RTPMAP Payload Mismatch - odge - 11-14-2014 07:24 PM
Hi
Did you find out what fixes this issue. Seeing phones at a customer do this, causing havok on some transcoders who using the "0" and not the text description.
Regards
RE: Yealink T22 RTPMAP Payload Mismatch - Terry - 11-14-2014 07:31 PM
I didn't find the cause unfortunately and when I first reset and re-provisioned the phone it worked for a day then the same thing happened. I reset and re-provisioned the phone a second time and its been OK since.