mordor*CLI>
  == Using SIP RTP CoS mark 5
    -- Executing [6001@internal:1] Dial("SIP/demo_bob-00000001", "SIP/demo_alice,20") in new stack
[Jun 27 06:26:14] WARNING[13302][C-00000001]: app_dial.c:2431 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/demo_bob-00000001' status is 'CHANUNAVAIL'
mordor*CLI>