- [
    '^SIP/2.0 100 Trying',
    'Content-Length: 0'
  ]
- [
    '^SIP/2.0 200 OK',
    'Contact: <sip:testuser1003@127.126.0.1:50602;ob>;expires=600;\+sip.instance="<urn:uuid:C3DD6013-20E8-40E3-8EA2-5849B02ED0C4>";reg-id=1',
    'Content-Length: 0',
    'P-NGCP-Authorization: testuser1003@',
    'P-NGCP-Authorized: 1',
    '_:NOT:_Contact: <sip:testuser1003@127.126.0.1:6666;ob>;expires=\d+'
  ]