Connected to Asterisk 15.7.3 currently running on dbb24b6dd856 (pid = 10)
  == Using SIP RTP CoS mark 5
       > 0x7fad500138e0 -- Strict RTP learning after remote address set to: 192.168.0.102:51122
    -- Executing [100@int-call:1] Dial("SIP/101-00000012", "SIP/100") in new stack
[Sep  5 11:58:04] WARNING[125][C-0000000d]: app_dial.c:2512 dial_exec_full: Unable to create channel of type 'SIP' (cause 20 - Subscriber absent)
  == Everyone is busy/congested at this time (1:0/0/1)
    -- Auto fallthrough, channel 'SIP/101-00000012' status is 'CHANUNAVAIL'
    -- Registered SIP '100' at 46.211.141.238:30587
[Sep  5 11:58:10] NOTICE[77]: chan_sip.c:24717 handle_response_peerpoke: Peer '100' is now Reachable. (86ms / 2000ms)
    -- Unregistered SIP '100'
  == Using SIP RTP CoS mark 5
       > 0x7fad500138e0 -- Strict RTP learning after remote address set to: 46.211.141.238:30436
    -- Executing [101@int-call:1] Dial("SIP/100-00000013", "SIP/101") in new stack
    -- Registered SIP '100' at 46.211.141.238:30587
  == Using SIP RTP CoS mark 5
    -- Called SIP/101
    -- Unregistered SIP '100'
    -- Registered SIP '100' at 46.211.141.238:30587
       > 0x7fad480069c0 -- Strict RTP learning after remote address set to: 192.168.0.102:59660
    -- SIP/101-00000014 answered SIP/100-00000013
    -- Channel SIP/101-00000014 joined 'simple_bridge' basic-bridge <76f5d817-14c8-4352-817b-f219aca2bcde>
    -- Channel SIP/100-00000013 joined 'simple_bridge' basic-bridge <76f5d817-14c8-4352-817b-f219aca2bcde>
       > Bridge 76f5d817-14c8-4352-817b-f219aca2bcde: switching from simple_bridge technology to native_rtp
       > Locally RTP bridged 'SIP/100-00000013' and 'SIP/101-00000014' in stack
[Sep  5 11:58:21] WARNING[77]: chan_sip.c:4076 retrans_pkt: Retransmission timeout reached on transmission 0HXm4SA1RS3eVN-Ajta6xg.. for seqno 1 (Critical Response) -- See https://wiki.asterisk.org/wiki/display/AST/SIP+Retransmissions
Packet timed out after 6400ms with no response
[Sep  5 11:58:21] WARNING[77]: chan_sip.c:4100 retrans_pkt: Hanging up call 0HXm4SA1RS3eVN-Ajta6xg.. - no reply to our critical packet (see https://wiki.asterisk.org/wiki/display/AST/SIP+Retransmissions).
    -- Channel SIP/100-00000013 left 'native_rtp' basic-bridge <76f5d817-14c8-4352-817b-f219aca2bcde>
  == Spawn extension (int-call, 101, 1) exited non-zero on 'SIP/100-00000013'
    -- Channel SIP/101-00000014 left 'native_rtp' basic-bridge <76f5d817-14c8-4352-817b-f219aca2bcde>
[Sep  5 11:58:21] ERROR[27]: cdr_csv.c:275 writefile: Unable to open file /var/log/asterisk//cdr-csv//Master.csv : No such file or directory
[Sep  5 11:58:21] WARNING[27]: cdr_csv.c:308 csv_log: Unable to write CSV record to master '/var/log/asterisk//cdr-csv//Master.csv' : No such file or directory
dbb24b6dd856*CLI>