Unknown RTP codec 123 received from 'IP:16402'

Asterisk Asterisk Support
1

I am trying to connect an MRD E1 line to an asterisk conference call.

I made everything working but the CISCO ROUTER is constantly ringing asterisk

I have thousands of Notice message like below

[Sep 29 12:55:41] NOTICE [29577][C-0000000e] : res_rtp_asterisk.c:3767 ast_rtp_read: Unknown RTP codec 123 received from 'IP:16402'

Can I stop asterisk from listening this warnings somehow?

Thanks

2

If you disable notice from your console in logger.conf it will stop the messages from being output, but you may miss other messages. There’s no other way except for modifying Asterisk.

3

Do you know why is the cisco router sending these messages?
What should I tell to disable? Do you know anything about CAS signaling?

4

I don’t know why it is sending it, and I don’t know about CAS signaling. The message itself is output when Asterisk receives an RTP packet with a payload that was not negotiated. In this case it’s a dynamic payload (123) so we truly have no idea what it is.

5

Thank you for your help