[SIPForum-discussion] Difference between Update and Re-Invite

[Vladimir Furman]

Deepak,

UPDATE is usually used before call is active (before OK-ACK are passed),
while RE-INVITE is used only during the active call.

Best regards,
Vladimir.


On Mon, Aug 9, 2010 at 11:40 PM, Nitin Kapoor <nitinkapoorr at gmail.com>wrote:

> Deepak,
>
> Both re-Invite and UPDATE are similar but the actual difference lies where
> UPDATE is always one way whereas in re-invite the negotiation happens like
> initial invite request.
>
> In UPDATE, either offer is accepted or ignored but the entity which
> receives UPDATE can't send it's allowed media parameters in the response,
> like what happens in 200OK for INVITE or re-INVITE.
>
> Thanks,
> Nitin Kapoor
>
> On 9 August 2010 12:07, Deepak raj Siddharthan <deepakraj.siddhu at gmail.com
> > wrote:
>
>> Hello all,
>>
>> Can any one tell me the difference betweent the "Update" method and
>> "Re-Invite" ?
>>
>> Thanks in advance
>>
>> Best Regards,
>> Deepak
>>
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