[Help]Unknown RTP codec 126

Asterisk Asterisk Support
1

Hi, trying to get video calls to work.
I have everything enabled in sip.conf and the users.conf.

I am using zoiper on android and PC. Trying to make a video call between the 2 and the video does not show. in the CLI I get the following error

[quote] NOTICE[23429][C-000002d3]: res_rtp_asterisk.c:4478 ast_rtp_read: Unknown RTP codec 126 received from 'xxx.xxx.xxx.xxx:42666’
NOTICE[23429][C-000002d3]: res_rtp_asterisk.c:4478 ast_rtp_read: Unknown RTP codec 126 received from ‘xx.xx.xx.xx:8002’[/quote]

I have googled high and low and cant find any info on this specific error. Not in english anyway.

I have only one video codec enabled in sip.conf and users.conf
Users

[quote]qualify = yes
disallow = all
allow = ulaw,h263p
videosupport = yes
[/quote]

SIP

[quote]videosupport = yes
accept_outofcall_message = yes
outofcall_message_context = astsms
nat = yes
domain = 5.189.158.103
disallow = all
allow = g722,ulaw,h263p
[/quote]

I also have both clients configured to use ONLY h263p for video and ulaw for audio.

Anyone have any clues as to what this error is?

2

It normally means the peer is broken. To confirm this you will need to provide the SDP exchange (from sip set debug on). The error means that Asterisk didn’t indicate it was willing to receive anything with codec number 126 and therefore didn’t say which codec to associate with this number. As a result it has no idea how to cope with what the peer is illegally sending.