Hi Satya
Maxforward is mandatory in all SIP messages see 8.1.1 for more info
8.1.1 Generating the Request A valid SIP request formulated by a UAC
MUST, at a minimum, contain the following header fields: To, From, CSeq,
Call-ID, Max-Forwards, and Via; all of these header fields are mandatory
in all SIP requests. These six header fields are the fundamental
building blocks of a SIP message, as they jointly provide for most of
the critical message routing services including the addressing of
messages, the routing of responses, limiting message propagation,
ordering of messages, and the unique identification of transactions.
These header fields are in addition to the mandatory request line, which
contains the method, Request-URI, and SIP version.
Regards
Prithvi
Satyendra Tiwari wrote:
> Hello,
>
> Is Max-Forward header mandatory in SIP responces?
> If optional then why?
>
>
>
>
>
> Thanks And Regards,
> Satyendra Tiwari
> Alcatel-Lucent
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>
>
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