Hi Vikram, Just recalled that we also have problems with APS/VAS G729, e.g: ticket #735 (http://trac.pjsip.org/repos/ticket/735). So the APS/VAS G729 behaviour will be: - G.729 encoder always disables VAD, so no SID/DTX frames will be generated. - G.729 decoder will be able to handle SID/DTX frames (when VAD is enabled). Also see inline comments. On Sat, Sep 4, 2010 at 2:40 AM, Vikram Ragukumar <vragukumar at signalogic.com> wrote: > Nanang, > >> Yes, it is supported, please check doxygen doc in >> pjmedia/include/pjmedia-codec/passthrough.h for more info (the online >> doc hasn't been updated yet). > > Thank you for your response. > > Support for G.729B when accessed through APS/VAS Direct assumes that the > firmware running on the phone includes this codec... correct ? APS/VAS can enumerate supported codecs in runtime, and yes, annex B is always assumed to be there when G729 is supported. > > So, is it possible that there are Nokia phones running a version of firmware > that does not include G729.B? Are there any messages generated in pjsip's > log under such a circumstance ? Don't know. Will be no explicit log message. > > Where can I find a list of firmware level Nokia E-series supported features? Don't know. > > With some searching on google i found > > - Several posts on Nokia's forum where people are complaining about VAD not > working when using APS/VAS As mentioned before, we experienced it too (in encoding side). > > - Nokia's datasheets do not indicate explicitly that G729B is supported when > using APS/VAS I think I read it somewhere, couldn't remember. > > Does PJSIP/PJMEDIA implement a VAD/DTX scheme in front of the G729 codec ? Not for APS/VAS direct. BR, nanang > > Thanks and Regards, > Vikram. >
