Hi All , I am using Pjsip library for SIP calling. For this I have created a .a file (on iPhone 3.1.3 OS) and import that file into my project. It is working fine over here. But when i use that file with iOS 4.0 SDK, it is working fine except the voice quality. When I make call from my iPHone, on iPhone 3.1.3 OS, the voice quality is very clear but on iOS 4.0 the voice is hampering at the receiver's end. The caller can here the receiver's voice on iPhone 4.0 OS but there is also some delay in it. Does anybody having the same problem and did you found any solution for this? Please help if anyone has any clew or any solution for this . Regards Shakti.P -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20100923/c97c5aa3/attachment.html>