[SIPForum-discussion] Register request without Contact

[darshan b n]

Hi,

i want to know whether CONTACT  IS  MANDATORY IN  THE SIP REGISTER request
or not , if not whaT will be response from the server side.please respond
ASAP

-- 

  REGISTER sip:[remote_ip]:[remote_port] SIP/2.0
      Via: SIP/2.0/[transport] [local_ip]:[local_port]
      From: sipp <sip:regclient11@[local_ip]:[local_port]>;tag=[call_number]
      To: <sip:regclient11@[local_ip]:[local_port]>
      Call-ID: [call_id]
      Cseq: 1 REGISTER
      Expires:3600
      Max-Forwards: 70
      Content-Length: 0



darshan B N

THANKS AND REGARDS
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