[OpenSIPS-Users] B2BUA | Refer scenario not sending SDP

[Sam Govind]

Hey Anca,

Please tell me why can't I capture the "Refer-To" header coming from B-leg
of the call ? earlier in your reply you said its for A-leg. I can't seem to
have it working for B-leg.

Thanks,
Sammy


On Tue, Aug 23, 2011 at 9:21 AM, Sam Govind <govoiper at gmail.com> wrote:

> Thanks Anca for the explanation, but can you just tell me if what I'm
> trying to do here is possible with B2BUA or not? if you are saying that A
> side Refer-to header will be read then obviously I need to take care of the
> client1 and server1 parameters accordingly.
>
> I've a FreeSwitch as Media-Server to play some IVR to User-A and collect
> DTMF.OpenSIPS will be acting as B2BUA for this call.
>
> Once DTMF are collected, Media-Server Refers the call back to OpenSIPS
> At OpenSIPS I need to do some accounting on the collected DTMF    (I may
> need more than one XML script to get the control back)
> If I get OK from AAA then Send INVITE to the DTMF destination
> else Send INVITE to Media-Server to play some Message.
>
>
> On Tue, Aug 23, 2011 at 12:22 AM, Anca Vamanu <anca.vamanu at gmail.com>wrote:
>
>> Hi Sam,
>>
>> Seems that you have a bad understanding of what the Refer scenario must
>> do. Let's say A and B are in a call. When a Refer message is received from
>> A, the B2B will terminate the call leg with A and will try connect B and the
>> URI in the Refer-To header. The connection is done indeed by sending first
>> an Invite without any SDP to B and doing a late SDP negotiation in 200OK and
>> ACK.
>> So what you observed, is in fact the wanted behavior.
>>
>> Regards,
>> Anca Vamanu
>>
>> On Mon, Aug 22, 2011 at 1:07 PM, Sam Govind <govoiper at gmail.com> wrote:
>>
>>>
>>> Hello,
>>>
>>>
>>>
>>> I’ve been trying to configure the REFER scenario<http://www.opensips.org/Resources/B2buaTutorial#toc15>but so far no luck. I've successfully called the scenario on initial INVITE
>>> and seems like I'm getting B2B responses and replies but when I see sip
>>> traces the following two anomalies exist.
>>>
>>>
>>> 1- Refer-To header value is not used anywhere in new INVITE
>>>
>>> 2- SDP is not sent in new INVITE.
>>>
>>>
>>> Please help.
>>>
>>>
>>>
>>> Best Regards,
>>>
>>> *Sam***
>>>
>>>
>>> _______________________________________________
>>> Users mailing list
>>> Users at lists.opensips.org
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>>>
>>>
>>
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>
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