Something

    -- Executing Dial("Zap/21-1", "ZAP/G1/2550") in new stack
    -- Requested transfer capability: 0x00 - SPEECH
    -- Called G1/2550
    -- Zap/20-1 is ringing
XXX Missing handling for mandatory IE 12 (cs0, Connected Number) XXX
    -- Zap/20-1 answered Zap/21-1
    -- Attempting native bridge of Zap/21-1 and Zap/20-1
    -- Attempting native bridge of Zap/21-1 and Zap/20-1
    -- Attempting native bridge of Zap/21-1 and Zap/20-1
    -- Attempting native bridge of Zap/21-1 and Zap/20-1
    -- Attempting native bridge of Zap/21-1 and Zap/20-1
    -- Attempting native bridge of Zap/21-1 and Zap/20-1
    -- Attempting native bridge of Zap/21-1 and Zap/20-1
    -- Attempting native bridge of Zap/21-1 and Zap/20-1
    -- Attempting native bridge of Zap/21-1 and Zap/20-1
    -- Attempting native bridge of Zap/21-1 and Zap/20-1
    -- Channel 0/22, span 1 got hangup request
    -- Hungup 'Zap/22-1'
  == Spawn extension (telamon_ivr01, 2548, 1) exited non-zero on 'Zap/23-1'
    -- Hungup 'Zap/23-1'
    -- Attempting native bridge of Zap/21-1 and Zap/20-1
    -- Channel 0/21, span 1 got hangup request
    -- Hungup 'Zap/20-1'
  == Spawn extension (telamon_ivr01, 0, 1) exited non-zero on 'Zap/21-1'
    -- Hungup 'Zap/21-1'