-- Starting simple switch on 'Zap/1-1'
[Jun 11 11:03:25] ERROR[25110]: callerid.c:564 callerid_feed: fsk_serie made mylen < 0 (-4)
[Jun 11 11:03:25] WARNING[25110]: chan_zap.c:6383 ss_thread: CallerID feed failed: Success
[Jun 11 11:03:25] WARNING[25110]: chan_zap.c:6483 ss_thread: CallerID returned with error on channel 'Zap/1-1'
    -- Executing [s@zap2:1] Wait("Zap/1-1", "1") in new stack
    -- Executing [s@zap2:2] Answer("Zap/1-1", "") in new stack
    -- Executing [s@zap2:3] Dial("Zap/1-1", "SIP/101|20") in new stack
[Jun 11 11:03:26] WARNING[25110]: app_dial.c:1099 dial_exec_full: Unable to create channel of type 'SIP' (cause 3 - No route to destination)
  == Everyone is busy/congested at this time (1:0/0/1)
  == Auto fallthrough, channel 'Zap/1-1' status is 'CHANUNAVAIL'
    -- Hungup 'Zap/1-1'