[SIPForum-discussion] Is (200)Ok without Ringing (180, 183) a right approach?

[Sumanta Sen]

Yes, you can have such call flows.....

On Thu, Sep 16, 2010 at 10:08 AM, Sachin Parnami <sachin.mobite at gmail.com>wrote:

> Hi *,
>
> Is it a right approach to send Ok (200) without Ringing(180) or Session in
> Progress (183)? as these are provisional responses.
>
> UE1                                             UE2
>  |              INVITE                            |
>  |-------------------------------------------------->|
>  |              TRYING (100)                  |
>  |<------------------------------------------------- |
>  |                     OK (200)                  |
>  |<--------------------------------------------------|
>
> Does it abides standards of RFC 3261?
>
> --
> Regards,
> Sachin Parnami
>
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