flow:
  - start|DEFAULT_ROUTE:
  - start|ROUTE_ENTRY:
  - return|ROUTE_ENTRY:
  - start|ROUTE_NET_INFO:
  - return|ROUTE_NET_INFO:
  - start|ROUTE_PRX_REQUEST:
  - start|ROUTE_INITVARS:
  - return|ROUTE_INITVARS:
  - start|ROUTE_LOCAL:
  - return|ROUTE_LOCAL:
sip_in:
  - '^ACK sip:4321001@'
  - 'From: <sip:004411001@127.0.2.1>'
  - 'To: <sip:4321001@'
  - 'CSeq: 1 ACK'
  - 'Max-Forwards: 69'
  - 'Content-Length:\s+0'
sip_out: []
