Hi all
I spent a few hours trying to information on asterisk, h323 and sip support for codecs with 20ms packetisation, and have not been able to find anything relivatant.
Our supplier of call termination requires h323 the following:
* The signalling port is 1720 * H.323 version 2 with fast start and H.245 Tunneling. * The call should be initialised as Gateway-Gateway not using RAS. * The codecs supported are G.729, G.711alaw and G.711ulaw all at 20 millisecond packetisation. Your equipment must support all three and be able to dynamically negotiate these during call setup. * We use RFC 2833 for out-of-band DTMF. Your equipment must support this. The NTE RTP Payload type supported is 99.
I was able after reading the source code in chan_h323.c to work out how to enable fast start and h.245 tunneling.
But the 20ms packetisation has me beat.
I have made a test call to the provider which did not work becase I was sending 30ms voice packets.
SO my question does any one know now to force the correct voice packet size ?
Thanks
Mike
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