flow:
  - start|MAIN:
  - start|ROUTE_NET_INFO:
  - end|ROUTE_NET_INFO:
  - start|ROUTE_IMP_REQUEST:
  - start|ROUTE_IMP_WITHINDLG:
  - end|ROUTE_IMP_WITHINDLG:
  - start|ROUTE_AUTH:
  - exit|ROUTE_AUTH:
sip_in:
  - '^SUBSCRIBE sip:testuser1002@'
  - 'Contact: <sip:127.1.1.1'
  - 'To: <sip:testuser1002@'
  - 'From: <sip:testuser1001@'
  - 'CSeq: 1 SUBSCRIBE'
  - 'Max-Forwards: 16'
  - 'Content-Length: 0'
  - 'Event: presence'
  - 'Accept: application/pidf\+xml'
sip_out:
  - [
      '^SIP/2.0 100 Trying',
      'CSeq: 1 SUBSCRIBE',
      'From: <sip:testuser1001@',
      'To: <sip:testuser1002@'
    ]
  - [
      '^SIP/2.0 407 Proxy Authentication Required',
      'CSeq: 1 SUBSCRIBE',
      'From: <sip:testuser1001@',
      'To: <sip:testuser1002@'
    ]