> On 06 Dec 2016, at 14:16, Kristian Martens <[email protected]> wrote:
> 
> Hi Harald,

Hey!

> thank you for your answer. Yes, the call agent requests a new connection to 
> the MGW. And it gets an answer. Mostly it fails, and suddenly, one time, it 
> was OK and I wanted to find out the reason for this strange behaviour (see 
> attached pcap). I also wanted to have the log output inside the specific log 
> file. So do I need to specify the log file section again in the 
> osmo-bsc-mgcp.cfg as it is in osmo-bsc.cfg? Could this be the reason why I do 
> not find MGCP log messages in it?


in contrib/mgcp_server.py we have a small python piece to send CRCX/MDCX/DLCX 
to the GW. I have not tried to replay your message but you could modify the 
utility. Just looking at the trace I see that a dynamic payload type is used 
but it is not mapped to an audio codec. This is problematic and might be the 
origin of your issue. Our SDP code is not great but I think it started to 
understand codec name to payloadtype mapping.

The other fun thing is that it starts to accept it. For replayed messages it 
should have a cached (the last) result. Was there any other message in between?

holger

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