-- Accepting call from '134' to '2525' on channel 0/23, span 2
    -- Executing Dial("Zap/47-1", "SIP/pap1_line1") in new stack
    -- Called pap1_line1
    -- Got SIP response 486 "Busy Here" back from 192.168.64.122
    -- SIP/pap1_line1-62ce is busy