Hi We worked on pjsip for windows mobile 5.0 previously and that time developed an application and we didnot face any sound problems. Now we want to develop a voip application using pjsip for a custom wince device and i used the pjsip libs which i got by building the pjsip for that wince device platform and used those libs and developed a simple application for this custom wince device. I am able to register successfully for a server , but i am unable to hear any sound when i made a call to mobile or any application in desktop like xlite.In this Case we are able to get the RTP data and we r using GSM Codec, but i am getting loud static noice in this call and in some other same type of device after initializing pjmedia itself i m getting this loud static noice. The processor which i m using in this wince device is Intel, ARM920T-PX do u think is there any probelm with the device ??? Also after initializing pjstack if i try to play a wav file using PlaySound Function, i am unable to hear the sound and only after exiting from the pjstack only i can hear the sound . i am not sure whether its the problem with the sound card/driver of the device . please suggest us . Regards Rams --------------------------------- Share files, take polls, and discuss your passions - all under one roof. Click here. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20080403/fee7b71e/attachment.html