With IAX logging enabled, I usually receive a HANGUP packet with cause 16. Does that ALWAYS mean that the caller hung up their phone normally, or could it mean that the call was dropped due to a technical problem?
Here’s a sample of a dropped call. I noticed that, at the end, we started receiving RTP packets but were not sending them anymore. Could this be because our upload bandwidth is too low?
[2017-12-07 09:30:43.823] VERBOSE[135691][C-00000091] res_rtp_asterisk.c: Sent RTP packet to 10.20.1.53:11982 (type 00, seq 024804, ts 243560, len 000160)
[2017-12-07 09:30:43.827] VERBOSE[135691][C-00000091] res_rtp_asterisk.c: Got RTP packet from 10.20.1.53:11982 (type 00, seq 001515, ts 498923951, len 000160)
[2017-12-07 09:30:43.846] VERBOSE[135691][C-00000091] res_rtp_asterisk.c: Sent RTP packet to 10.20.1.53:11982 (type 00, seq 024805, ts 243720, len 000160)
[2017-12-07 09:30:43.847] VERBOSE[135691][C-00000091] res_rtp_asterisk.c: Got RTP packet from 10.20.1.53:11982 (type 00, seq 001516, ts 498924111, len 000160)
[2017-12-07 09:30:43.860] VERBOSE[135691][C-00000091] res_rtp_asterisk.c: Sent RTP packet to 10.20.1.53:11982 (type 00, seq 024806, ts 243880, len 000160)
[2017-12-07 09:30:43.867] VERBOSE[135691][C-00000091] res_rtp_asterisk.c: Got RTP packet from 10.20.1.53:11982 (type 00, seq 001517, ts 498924271, len 000160)
[2017-12-07 09:30:43.887] VERBOSE[135691][C-00000091] res_rtp_asterisk.c: Got RTP packet from 10.20.1.53:11982 (type 00, seq 001518, ts 498924431, len 000160)
[2017-12-07 09:30:43.907] VERBOSE[135691][C-00000091] res_rtp_asterisk.c: Got RTP packet from 10.20.1.53:11982 (type 00, seq 001519, ts 498924591, len 000160)
[2017-12-07 09:30:43.927] VERBOSE[135691][C-00000091] res_rtp_asterisk.c: Got RTP packet from 10.20.1.53:11982 (type 00, seq 001520, ts 498924751, len 000160)
[2017-12-07 09:30:43.947] VERBOSE[135691][C-00000091] res_rtp_asterisk.c: Got RTP packet from 10.20.1.53:11982 (type 00, seq 001521, ts 498924911, len 000160)
[2017-12-07 09:30:43.967] VERBOSE[135691][C-00000091] res_rtp_asterisk.c: Got RTP packet from 10.20.1.53:11982 (type 00, seq 001522, ts 498925071, len 000160)
[2017-12-07 09:30:43.987] VERBOSE[135691][C-00000091] res_rtp_asterisk.c: Got RTP packet from 10.20.1.53:11982 (type 00, seq 001523, ts 498925231, len 000160)
[2017-12-07 09:30:44.007] VERBOSE[135691][C-00000091] res_rtp_asterisk.c: Got RTP packet from 10.20.1.53:11982 (type 00, seq 001524, ts 498925391, len 000160)
[2017-12-07 09:30:44.027] VERBOSE[135691][C-00000091] res_rtp_asterisk.c: Got RTP packet from 10.20.1.53:11982 (type 00, seq 001525, ts 498925551, len 000160)
[2017-12-07 09:30:44.036] VERBOSE[2029] chan_iax2.c: Rx-Frame Retry[ No] – OSeqno: 011 ISeqno: 017 Type: IAX Subclass: HANGUP
[2017-12-07 09:30:44.036] VERBOSE[2029] chan_iax2.c: Timestamp: 34132ms SCall: 07865 DCall: 12065 162.254.144.176:4569
[2017-12-07 09:30:44.036] VERBOSE[2029] chan_iax2.c: CAUSE CODE : 16