[asterisk-dev] RTP interop with Sonus: hack

Kristian Kielhofner kristian.kielhofner at gmail.com
Wed Jan 7 16:52:29 CST 2009

On Mon, Jan 5, 2009 at 2:42 PM, Joshua Colp <jcolp at digium.com> wrote:
> A few weeks ago I actually changed the RFC2833 code to do as mentioned and make it use a unique timestamp. In testing this seemed to solve the issue with a few providers (who could have been using Sonus equipment) and cause no issues with any other devices or providers. This should be in the next release of 1.4 and others so this thread may be a noop... would be nifty to test to confirm.

Hmmm...  After testing with Sonus gear at Level(3) and XO DTMF is
still broken.  I have multiple packet captures for each.  Everything
looks good to me and everyone else that has looked at them (still
waiting on XO, actually) agrees.  Timestamps are in deed unique and
nothing else looks broken.

pcaps here:

http://admin.star2star.com/xo-dtmf.pcap (XO)
http://admin.star2star.com/dtmf5.pcap (Level(3))

Any ideas?

Kristian Kielhofner

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