This is a valid point that I missed. You can’t send an INVITE back to the UAC while the original INVITE remains unanswered. The UAC should/must respond with a 491 Request Pending.
This is the use case that UPDATE was created for, and that would work if the UAC supports it. If it must be INVITE then you would have to be a B2BUA because you would have to answer the initial INVITE from the UAC while the outgoing INVITE was still in progress, so that you could do the re-INVITE. Ben Newlin From: Bogdan-Andrei Iancu <[email protected]> Date: Tuesday, April 9, 2024 at 10:55 AM To: Parthesh Bhavsar <[email protected]>, OpenSIPS users mailling list <[email protected]>, Ben Newlin <[email protected]> Subject: Re: [OpenSIPS-Users] Waiting for 200 OK EXTERNAL EMAIL - Please use caution with links and attachments ________________________________ Hi, my 2 cents here - how comes you want to send a RE-INVITE _BEFORE_ having the dialog established??? Regards, Bogdan-Andrei Iancu OpenSIPS Founder and Developer https://www.opensips-solutions.com<https://www.opensips-solutions.com> https://www.siphub.com<https://www.siphub.com> On 09.04.2024 17:35, Parthesh Bhavsar via Users wrote: It seems after setting T_fr_timeout parameter it was sending a CANCEL request to another leg but for my requirement I need to send Reinvite. Also for generating Reinvite I have used dlg_send_sequential() as I use opensips as a proxy server. Any other modules on which I look for? Regards, Parthesh Bhavsar | Software Engineer | VOIP On Tue, Apr 9, 2024 at 7:36 PM Ben Newlin <[email protected]<mailto:[email protected]>> wrote: The timing requirement can be solved using the $T_fr_timeout parameter [1]. For sending a re-Invite back to the UAC I believe you’d have to be a B2BUA. [1] - https://opensips.org/docs/modules/3.4.x/tm.html#pv_T_fr_timeout<https://opensips.org/docs/modules/3.4.x/tm.html#pv_T_fr_timeout> Ben Newlin From: Users <[email protected]<mailto:[email protected]>> on behalf of Parthesh Bhavsar via Users <[email protected]<mailto:[email protected]>> Date: Tuesday, April 9, 2024 at 5:31 AM To: OpenSIPS users mailling list <[email protected]<mailto:[email protected]>> Subject: [OpenSIPS-Users] Waiting for 200 OK EXTERNAL EMAIL - Please use caution with links and attachments ________________________________ Hello, I have a requirement where If I get 183 responses then I need to wait for a specific period of time for 200 OK and if 200 OK is not received in that time then I need to send Reinvte back to UA with some modifications. I have gone through the SST module but have not found anything relevant to match my requirements. Can anyone suggest some module or function on which I can go further to meet my requirements. 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