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

[Anca Vamanu]

Hi Sammy,

On Wed, Aug 24, 2011 at 11:54 AM, Sam Govind <govoiper at gmail.com> wrote:

> 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.
>
> It doesn't matter if it is A or B.
You can take the Refer-To header in the b2b_request route:
http://www.opensips.org/Resources/B2buaTutorial#toc19.

Regards,
Anca



> 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
>>>> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>>>>
>>>>
>>>
>>> _______________________________________________
>>> Users mailing list
>>> Users at lists.opensips.org
>>> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>>>
>>>
>>
>
> _______________________________________________
> Users mailing list
> Users at lists.opensips.org
> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.opensips.org/pipermail/users/attachments/20110824/649f5cbc/attachment.htm>