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

[vijay swami]

Yes that is practical...I am dealing with Truefone server (used in USA). It hardly sends the 180 Ringing. Directly it sends 200 OK.

  VIJAY

--- On Sat, 18/9/10, Sumanta Sen <sen.sumanta.mckv at gmail.com> wrote:


From: Sumanta Sen <sen.sumanta.mckv at gmail.com>
Subject: Re: [SIPForum-discussion] Is (200)Ok without Ringing (180, 183) a right approach?
To: "Sachin Parnami" <sachin.mobite at gmail.com>
Cc: discussion at sipforum.org
Date: Saturday, 18 September, 2010, 7:42 AM


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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