When a call connects there is a burst of packets and several seconds of audio lost. "strm0x1b36f68 Jitter buffer starts returning normal frames (after 197 empty/lost)" This happens when the other line answers the call. I know this because when recording the call, I can hear ringing and then there is a 2-3 second silence while the other line says "hello" and eventually audio starts coming in. What could be causing this?