0 votes

Hello,
I use Zoiper for 4 lines. Everything works fine.
Today I added the next account. Incoming calls are hung up immediately with the error message "Can't find matching codec in SDP (Code: 2)". Outgoing I can dial numbers and they also ring. The codecs are the same as in the other accounts, which work perfectly. What can be the reason for this?


in Windows by (150 points)

It is possible that your server is sending encrypted RTP (SRTP), while this option is not enabled in Zoiper. The issue here is that you PBX probably accepts both SRTP and standard RTP, which leads to your outgoing calls being accepted. But when the server sends you the call, it is forcing SRTP.

Make sure that your transport is set to TLS and the SRTP (SDES) is enabled in Zoiper.

Please log in or register to answer this question.

Welcome!
Ask your questions and receive answers from other members of the Zoiper Community.

Did you check our Help Section?

You are a Zoiper Biz or Premium customer? If so, click HERE to get premium support.
2,484 questions
1,562 answers
2,326 comments
148,188 users