OK so my config_site.h only contains these: #include <pj/config_site_sample.h> #define PJ_WIN32_WINCE 1 I still can't escape the crash or hanging. Best I could get was no crash but no sound either. I tried disabling VAD and changing the buffer to 16 but to no effect. GSM is currently the only codec working on these PDAs. Any suggestions? Regards, Samer ________________________________________ Samer M. Faour Computer and Communications Engineering American University of Beirut P.O. Box 11-0236/ 1461 Riad el Solh Square 1107 - 2020 Email: smf18 at aub.edu.lb ----------------------------------------------------------------