Hi Regis, Thanks for you reply. The implementation I have is based on csipsimple but for iPhone, so I cannot test a csipsimple build. I do have the payload type in the types.h file but the enum is in a different order, in my case SILK 16KHz is currently 121 (this is the preferred codec I am using). What I don't understand is were pjsip is initially getting 104 as the payload type. Alex. On Sep 19, 2012, at 11:56 PM, R?gis Montoya wrote: > Hi Alex > > If you are using csipsimple silk integration did you applied the patch that adds the silk rtp payload type? > Also do you get the same problem trying silk with a csipsimple build? > > BR > Regis > > Le 20 sept. 2012 06:57, "Alex" <alex.solis at telcentris.com> a ?crit : > Hi, > > When using the SILK codec, I am only getting one way audio: > rtp.c pjmedia_rtp_session_init: ses=0x9bdc55c, default_pt=104, ssrc=0x55d47fd9 > rtp.c pjmedia_rtp_session_init: ses=0x9bdc8a0, default_pt=121, ssrc=0x55d47fd9 > > It looks like pjmedia is changing the payload type causing a mismatch at the server. > > Is there a way to determine what is causing the payload type to change from 104 to 121? > > Thanks in advance, > Alex. > > > > > > _______________________________________________ > Visit our blog: http://blog.pjsip.org > > pjsip mailing list > pjsip at lists.pjsip.org > http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org > > _______________________________________________ > Visit our blog: http://blog.pjsip.org > > pjsip mailing list > pjsip at lists.pjsip.org > http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20120920/eeeeac1f/attachment-0001.html>