-- Executing Macro("Zap/1-1", "followme|Sip/101|16502468900") in new stack
    -- Executing Answer("Zap/1-1", "") in new stack
    -- Accepting call from '6502468901' to '2019' on channel 0/1, span 1
    -- Executing Wait("Zap/1-1", "1") in new stack
    -- Executing Dial("Zap/1-1", "Sip/101|20") in new stack
    -- Called 101
    -- Redirecting Zap/1-1 to fax extension
  == Spawn extension (macro-followme, fax, 0) exited non-zero on 'Zap/1-1' in macro 'followme'
  == Spawn extension (inbound, fax, 1) exited non-zero on 'Zap/1-1'
    -- Executing Congestion("Zap/1-1", "") in new stack
Dec 10 16:05:13 WARNING[12475]: chan_sip.c:685 retrans_pkt: Maximum retries exceeded on call 082cd640083d77185c47f26643ce1474@64.201.99.247 for seqno 102 (Critical Request)
    -- Channel 0/1, span 1 got hangup
  == Spawn extension (inbound, fax, 2) exited non-zero on 'Zap/1-1'
    -- Hungup 'Zap/1-1'
Dec 10 16:05:15 WARNING[12475]: chan_sip.c:685 retrans_pkt: Maximum retries exceeded on call 082cd640083d77185c47f26643ce1474@64.201.99.247 for seqno 102 (Non-critical Request)