On 12 Jul 2005, at 15:05, Tony Mountifield wrote:
I'd be interested to understand where you read about the 'sequence numbers' issue. This sounds like it might relate to the problem I am experiencing. It's either that, or the DTMF is coming inband over the IAX channel... ;-)
Well you could try doing a tcpdump to capture the incoming and outgoing packets on the IAX port. Use the -w option with -s0, to write the whole of each packet to the packet file.
You could then use a recent version of Ethereal to read the packet file and analyse it. Apparently, recent versions of Ethereal understand IAX. Ethereal is able to save RTP audio streams as audio files - it might be able to do the same with IAX audio streams, but I don't know.
Having just spent an age getting my head around IAX2 sequence numbers, I might be able to help here. If one of you wants to mail me a packet trace I'll see if I can spot anything.
Tim.
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