All, We are debugging an audio quality problem during calls. Our setup includes a Nokia phone (E51, E63), that runs a sip soft phone written using PJSIP, PJMEDIA stacks. During the call, the soft phone receives RTP packets with G729 payload. The payload length varies between 90 and 140 across RTP packets in a single session. Our debug has shown that packets are received with timestamps out of order, table below indicates this Pkt Seq number Time stamp Payload size 1 960 120 2 2240 140 3 3360 140 4 4160 130 5 5200 130 6 4800 100 7 7280 130 8 6400 100 9 9360 130 10 11200 140 11 11440 130 12 13440 140 13 12480 120 14 15680 140 15 13200 110 16 11520 90 17 19040 140 18 12960 90 19 13680 90 20 19200 120 Could timestamps being out of order, i.e. not increasing monotonically, cause the audio to sound "choppy" ? Thanks in advance for your help. Regards, Vikram.
