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Does Cisco TSP support G.729 codecs?

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This document was generated from CDN thread

Created by: David Nguyen on 11-06-2008 11:57:52 PM
It seems that TSP only supports G.711 u-law codecs. Why doesn't TSP
support G.729 ?

Subject: Re: Does Cisco TSP support G.729 codecs?
Replied by: David Nguyen on 11-06-2008 11:58:14 PM
Unfortunately there's not a lot of documentation on using media stacks other than the Cisco G.711 TAPI wave driver...there are a variety of methods to approach this (Cisco TAPI Softphone uses Microsoft DirectShow filtergraphs
for this.)

Basically, you will want to open a CTI port device using 'custom media termination' mode (see TAPI Developer Guide.) From then on, your app will receive RTP start/stop events, containing IP/port/codec info indicating when media should be streamed. Your app will take this information to its media
implementation and cause the stack to stream/receive RTP in response. Pretty much anything related to media/RTP is left up to the application developer to implement in whatever way works best.

Subject: Re: Does Cisco TSP support G.729 codecs?
Replied by: Vladimir Banker on 18-12-2008 10:31:09 PM
Is it possible to get example which perform above task?
Answer call on CTI port and capture RTP packets voice to wave file?
It will be very productive.

Subject: Re: Does Cisco TSP support G.729 codecs?
Replied by: David Staudt on 18-12-2008 11:33:01 PM
There is a sample which does just that here: http://developer.cisco.com/web/tapi/docs ...for TAPI.

However, I think you may be interested in JTAPI. There is no Cisco provided JTAPI sample that does media (since media is platform specific), but I suggest posting in the JTAPI forum, someone in the community may have something.

Subject: Re: Does Cisco TSP support G.729 codecs?
Replied by: Vladimir Banker on 19-12-2008 02:28:27 PM
This sample is using TAPI wave driver.
I am looking for rtp capture sample. May be with using below
functions:
CCiscoLineDevSpecificSetRTPParamsForCall
CCiscoLineDevSpecificSetStatusMsgs
CCiscoLineDevSpecificUserControlRTPStream

Subject: Re: Does Cisco TSP support G.729 codecs?
Replied by: David Staudt on 19-12-2008 06:07:08 PM
Cisco doesn't have any samples of using custom RTP implementation. Perhaps someone in the community has something...

Subject: RE: Re: Does Cisco TSP support G.729 codecs?
Replied by: Sandro Torri on 25-06-2009 03:31:26 PM
This sample is using TAPI wave driver.
I am looking for rtp capture sample. May be with using below
functions:
CCiscoLineDevSpecificSetRTPParamsForCall
CCiscoLineDevSpecificSetStatusMsgs
CCiscoLineDevSpecificUserControlRTPStream


I too am looking for rtp capture sample. You are able to find one?
 
thanks
Sandro
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