[OpenSIPS-Users] doing next priority dialing in case of 504 reply received

[Ovidiu Sas]

On Thu, Apr 23, 2009 at 7:58 AM, Ricardo Carvalho
<rjcarvalho.lists at gmail.com> wrote:
> It seems like I was doing everithing right, capturing the call sequence with
> wireshark revealed that a new branch is in fact created, but because this
> branch keeps the same Call-ID of the initial ENUM call, the second INVITE
> sent to my telco via the SBC gets automatically refused in the SBC, and that
> I guess is because this new branch is using the same Call-ID...
>
> Is it possible to force openser to create a new Call-ID for the new
> append_branch?

No, it is not possible.  You will need a B2BUA if you want to generate
a new Call-ID.

> Ricardo.
>
>
>
> On Thu, Apr 23, 2009 at 11:01 AM, Ricardo Carvalho
> <rjcarvalho.lists at gmail.com> wrote:
>>
>> Thanks Bogdan, I've tried a failure_route with append_branch and t_relay
>> like you told, and in fact it works when the reply of the first call atempt
>> is for example a 500, but with 504 replys it doesn't work!
>>
>> Do you have any clue on what can be missing?
>>
>> Best regards,
>> Ricardo.
>>
>>
>>
>>
>> On Wed, Apr 22, 2009 at 8:08 AM, Bogdan-Andrei Iancu
>> <bogdan at voice-system.ro> wrote:
>>>
>>> Hi Ricardo,
>>>
>>> Use a failure route to catch the transaction failure event (due 504
>>> reply); from this failure route you can create new branches by simply
>>> relaying the call to a new destination:
>>>   http://www.opensips.org/index.php?n=Resources.DocsCoreRoutes#toc3
>>>
>>> Regards,
>>> Bogdan
>>>
>>> Ricardo Carvalho wrote:
>>>>
>>>> Hi,
>>>>  I'm implementing a route in openser.cfg which sends calls to ENUM
>>>> destinations via one SBC. In cases where there is no IP connectivity for
>>>> that ENUM calls to  be delivered, my SBC fires a timeout sending back to
>>>> openser a 504 SIP message reply. In this cases I would like to be able to
>>>> implement in openser like a fallback to a "next priority" in the dialplan in
>>>> case this 504 is received, now making openser to start a call to my telco
>>>> sip trunk.
>>>>  How can I do this in openser? For the tests I made, in the
>>>> onreply_route I can identify that 504 messages, but from there I never can
>>>> manage making a new call for the destination DID that was initially dialed
>>>> because it seems like openser has flushed the request-uri that was initially
>>>> dialed...
>>>>  Is there any way to do this?
>>>>  Best regards,
>>>> Ricardo Carvalho.
>>>> ------------------------------------------------------------------------
>>
>>
>
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