May  4 16:33:58 WARNING[29238]: chan_iax2.c:6763 socket_read: Call rejected by 66.11.188.52: No such context/extension
    -- Hungup 'IAX2/smc-20'
  == No one is available to answer at this time (1:0/0/0)
    -- Executing NoOp("SIP/64.26.157.252-0816b8b8", "PEER: HANGUPCAUSE is 0 and DIALSTATUS is NOANSWER") in new stack