Peter Kayser wrote: > Hi Benny, hi all, > > we try to run our VoIP-Client (based on PJSIP) under Vista and got extremely bad speech quality and a high jitter. We run tests with pjsua and got the same result. Have anybody an idea where this problems can came from? Which pjsip version is this? I've just increased WMME buffer size from 60 to 100ms, and reduced default EC tail length from 800 to 200ms. Could you re-run you test with the very latest pjsua (r1513 as we speak)? regards, -benny > Many thanks in advance > > Peter