Hi It seams there is a problem in pjsua (pjsip/pjmedia) with buffers. I have a simple application based on pjsua (1.1 trunk) on Win32. When starting the application I have great sound over Asterisk 1.2 and G711. After several hours. The application is idle, no calls. When a call arrives the caller has bad quality. Drops on audio. Sounds like an empty buffer problem. Do you know this problem? Have you ever let an application idle for 24 hours and the call to this application? Regards Michael.