== Using SIP RTP CoS mark 5
    -- Executing [1000@skuska:1] Ringing("SIP/1001-0000003c", "") in new stack
    -- Executing [1000@skuska:2] Dial("SIP/1001-0000003c", "SIP/1000") in new stack
  == Using SIP RTP CoS mark 5
    -- Called 1000
    -- SIP/1000-0000003d is ringing
  == Spawn extension (skuska, 1000, 2) exited non-zero on 'SIP/1001-0000003c'