== Using SIP RTP CoS mark 5
    -- Executing [4321@default:1] Dial("SIP/1000-00000000", "DAHDI/G1/4169100803,1000,r") in new stack
    -- Requested transfer capability: 0x00 - SPEECH
    -- Called G1/4169100803
    -- Channel 1/23, span 1 got hangup, cause 100
    -- Hungup 'DAHDI/23-1'
  == Everyone is busy/congested at this time (1:0/0/1)
    -- Auto fallthrough, channel 'SIP/1000-00000000' status is 'CHANUNAVAIL'