Hello Guys, I think in case APS is selected to use, APS is supposed to do codec related encoding and decoding but i saw pjmedia_ulaw_encode and pjmedia_ulaw_decode functions in Symbian_Sound_APS.cpp files. Does that mean encoding and decoding is taken care by pjmedia rather than APS? Regards, Manoj -------------------------------------------------------------------- mail2web.com ? Enhanced email for the mobile individual based on Microsoft? Exchange - http://link.mail2web.com/Personal/EnhancedEmail