Sep  1 16:14:43 NOTICE[98310]: chan_sip.c:7434 handle_request: Registration from '<sip:1992222@209.53.197.102>' failed for '209.53.197.111'
    -- Starting simple switch on 'Zap/1-1'
    -- Executing Dial("Zap/1-1", "SIP/1992222") in new stack
Sep  1 16:14:49 NOTICE[720912]: app_dial.c:715 dial_exec: Unable to create channel of type 'SIP'
  == Everyone is busy/congested at this time
    -- Executing Goto("Zap/1-1", "s-CHANUNAVAIL|1") in new stack
    -- Goto (pstn-in,s-CHANUNAVAIL,1)
    -- Executing Hangup("Zap/1-1", "") in new stack
  == Spawn extension (pstn-in, s-CHANUNAVAIL, 1) exited non-zero on 'Zap/1-1'
    -- Hungup 'Zap/1-1'
    -- Starting simple switch on 'Zap/1-1'
Sep  1 16:14:56 NOTICE[737296]: chan_zap.c:5056 ss_thread: Got event 2 (Ring/Answered)...
    -- Executing Dial("Zap/1-1", "SIP/1992222") in new stack
Sep  1 16:14:56 NOTICE[737296]: app_dial.c:715 dial_exec: Unable to create channel of type 'SIP'
  == Everyone is busy/congested at this time
    -- Executing Goto("Zap/1-1", "s-CHANUNAVAIL|1") in new stack
    -- Goto (pstn-in,s-CHANUNAVAIL,1)
    -- Executing Hangup("Zap/1-1", "") in new stack
  == Spawn extension (pstn-in, s-CHANUNAVAIL, 1) exited non-zero on 'Zap/1-1'
    -- Hungup 'Zap/1-1'
Sep  1 16:14:59 NOTICE[98310]: chan_sip.c:7434 handle_request: Registration from '<sip:1992222@209.53.197.102>' failed for '209.53.197.111'
    -- Starting simple switch on 'Zap/1-1'
Sep  1 16:15:04 NOTICE[753680]: chan_zap.c:5056 ss_thread: Got event 2 (Ring/Answered)...
    -- Executing Dial("Zap/1-1", "SIP/1992222") in new stack
Sep  1 16:15:04 NOTICE[753680]: app_dial.c:715 dial_exec: Unable to create channel of type 'SIP'
  == Everyone is busy/congested at this time
    -- Executing Goto("Zap/1-1", "s-CHANUNAVAIL|1") in new stack
    -- Goto (pstn-in,s-CHANUNAVAIL,1)
    -- Executing Hangup("Zap/1-1", "") in new stack
  == Spawn extension (pstn-in, s-CHANUNAVAIL, 1) exited non-zero on 'Zap/1-1'
    -- Hungup 'Zap/1-1'
    -- Starting simple switch on 'Zap/1-1'
Sep  1 16:15:12 NOTICE[770064]: chan_zap.c:5056 ss_thread: Got event 2 (Ring/Answered)...
    -- Executing Dial("Zap/1-1", "SIP/1992222") in new stack
Sep  1 16:15:12 NOTICE[770064]: app_dial.c:715 dial_exec: Unable to create channel of type 'SIP'
  == Everyone is busy/congested at this time
    -- Executing Goto("Zap/1-1", "s-CHANUNAVAIL|1") in new stack
    -- Goto (pstn-in,s-CHANUNAVAIL,1)
    -- Executing Hangup("Zap/1-1", "") in new stack