Hi all My iPhone app uses the PJSIP iPhone Audio driver. It works well on 3G & 3GS iPhones, but I am having some voice quality issues on 2G iPhones. When making a call with a 2G iPhone, the voice is distorted and it is impossible to have a conversation. Did anyone experince the same issue or has any advise? this can be related to PJSIP/PJSIP audio driver or the 2G iPHone CPU. Thx Remo -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20100510/67b09b1c/attachment.html>