Hi, This is the mail regarding a issue with sound and its low volume .Actually I am using g729 codec and 20 ms as a ptime value in the application and I have built pjsipDLL with IPP 6.XXX version .With this ,when I call to any mobile with my application ,the volume is very low in cal lee side .And some time we are also getting robotic type voice .So give me any idea to resolve this issues . Thanks and regards Kirti -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20130208/67e9a496/attachment-0001.html>