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Hi All,
Please let me know,What are all the mandatory headers in sip basic call flow?will these headers vary from feature to feature such as sip basic call flow, sip registrations, call transfer, call forward etc.
Thanks in Advance
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Answer / ranjitha
To, From, Via, Call-id, Cseq, Max-frwrds, expires
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Hi All, Please let me know,What are all the mandatory headers in sip basic call flow?will these headers vary from feature to feature such as sip basic call flow, sip registrations, call transfer, call forward etc. Thanks in Advance
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