Hi, I'm connecting two FS'es with local audio (PA) each, via SIP using the CELT codec. I experience occasional audio dropouts, maybe one in five seconds. But not regulary. Sometimes it's fine for a minute. The recorded waveform shows there is just silence for some milliseconds. Sometimes the audio is garbled for a portion of a second. This happens even when the computers are on the same LAN, but it's getting worse when using public internet. All systems are running FS from GIT, with CELT 0.10.0. I have done the following debugging: - recording the session: recorded on both sides, local audio is ok, remote side has dropouts. pa loopback has no issues -> no soundcard/driver issue - running wireshark, using the RTP analyzer: on PCMA,G722 there is no packet loss, no notable jitter (<20ms). The RTP analyzer does not show any jitter info on CELT payload packets. I'm not sure if it can see lost packets. -> I'm quite sure there is no packet loss. How timing critical is CELT? Any ideas how I can go on with debugging? Or is this better posted to the CELT developers? Is anyone running FS+CELT with dropout-free audio? Thanks! Frank