[OpenSIPS-Users] MS Teams REFER transfer on hold.

[Johan De Clercq]

Refer-to must be populated with c number else it can never work.

Outlook voor iOS<https://aka.ms/o0ukef> downloaden
________________________________
Van: Slava Bendersky <volga629 at networklab.ca>
Verzonden: Friday, May 8, 2020 10:59:31 PM
Aan: OpenSIPS users mailling list <users at lists.opensips.org>
CC: johan <johan at democon.be>
Onderwerp: Re: [OpenSIPS-Users] MS Teams REFER transfer on hold.

Hello Johan,
Thank you for reply and help.
Based on MS Teams   Allow header will disable REFER and MS Teams will send invite in dialog.
The following code  snippet on 200 OK reply  is resolve the issue.

                        $var(refer-allow) = "INVITE, ACK, CANCEL, BYE, INFO, NOTIFY, PRACK, UPDATE, OPTIONS";
                        remove_hf("Allow");
                        insert_hf("Allow: $var(refer-allow)\r\n");



volga629
________________________________
From: "johan" <johan at democon.be>
To: "OpenSIPS users mailling list" <users at lists.opensips.org>
Sent: Friday, May 8, 2020 9:58:56 AM
Subject: Re: [OpenSIPS-Users] MS Teams REFER transfer on hold.


try with replying that you don't support refer.

On 8/05/2020 11:19, Slava Bendersky via Users wrote:
Hello Everyone,
I am trying put tougher transfer feature with in MS Teams.
And based on my research and testing right now is not possible with opensips.
MS Teams are sending on hold  in case of transfer and onhold as a=inactive.
Major problem they require encode/decode params in REFER-TO REFER-BY.

MS Teams expect observe REFER with 202 and decode params  with future action.

Here official requirements doc.

https://docs.microsoft.com/en-us/microsoftteams/direct-routing-protocols-sip#call-transfer

Any suggestion welcome.

volga629.





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