[office]
exten => 1212, 1, Dial(Zap/g1/5551212, 10, tm)
exten => 1212, 2, Congestion


    -- Accepting call from '' to '4440100' on channel 0/1, span 1
    -- Executing Wait("Zap/1-1", "2") in new stack
    -- Executing BackGround("Zap/1-1", "welcome") in new stack
    -- Playing 'welcome' (language 'en')
  == CDR updated on Zap/1-1
    -- Executing Dial("Zap/1-1", "Zap/g1/5551212| 20| tm") in new stack
    -- Called g1/5551212
    -- Started music on hold, class 'default', on Zap/1-1
    -- Channel 0/2, span 1 got hangup
    -- Hungup 'Zap/2-1'
  == No one is available to answer at this time
    -- Stopped music on hold on Zap/1-1
    -- Executing Congestion("Zap/1-1", "") in new stack
    -- Channel 0/1, span 1 got hangup
  == Spawn extension (pri, 1212, 2) exited non-zero on 'Zap/1-1'
    -- Hungup 'Zap/1-1'