[OpenSIPS-Users] 302 handling in openser

[Bogdan-Andrei Iancu]

Hi Sai,

Saw the bug and assigned it to me. Thanks for the report.

Regards,
Bogdan

sai at 800pbx.com wrote:
> Hi Bogdan,
>
> Thanks very much for volunteering to take care of it. I have logged in a
> bug :
>
> [ 2056761 ] maddr handling in 302 response
>
> but I did not assign it to you. Hope you will do that.
>
> A small note to the problem:
> Using uri.maddr field will not work in this case as the maddr field is not
> part of a URI but the CONTACT header.
>
> Thank you very much for the response.
>
> Regards,
> Sai.
>
>
>   
>> Hi Sai,
>>
>> i'm aware of the lack of support of maddr in opensips  - please uploaded
>> as a bug report on the tracker and I will take care of it asap.
>>     http://sourceforge.net/tracker/?atid=1086410&group_id=232389&func=browse
>>
>> Thanks and regards,
>> Bogdan
>>
>> sai at 800pbx.com wrote:
>>     
>>> The maddr field is in the CONTACT header and we need to extract the ip
>>> address in the maddr field.
>>>
>>> Regards,
>>> Sai.
>>>
>>>
>>>       
>>>> We have a setup where we are using Microsoft Speech Server (MSS) to
>>>> connect to Asterisk through Openser. This was done as MSS uses TCP only
>>>> and Asterisk only UDP. The connection is something like shown below:
>>>>
>>>> MSS <---->Openser<--->Asterisk<--->SIP Phones
>>>>
>>>> Now, when a SIP Invite is sent to MSS from SIP UA through openser,
>>>> Speech
>>>> server sends back a 302 message containing a maddr field populated with
>>>> the new IP Address where the UA must contact. This is forwarded back to
>>>> the SIP UA which doesnt know how to handle this. Moreover, the
>>>> transport
>>>> is TCP instead of UDP which creates more problems.
>>>>
>>>> We would like Openser to handle the 302 message and re-direct the
>>>> Invite
>>>> message to the new IP address got from the maddr field. How can we
>>>> populate this through Openser?
>>>>
>>>> In earlier posts, it was mentioned that uac_redirect module can be used
>>>> to
>>>> handle the 302 but how exactly can the maddr field read and Invite
>>>> populated with the new IP address is not clear.
>>>>
>>>> In one of the SIP users posts, the maddr usage was mentioned as :
>>>>
>>>> "In some rfc 2543 implementations it had
>>>> been used to force an alternative route to the the one specified in
>>>> R-URI,
>>>> however , this is discouraged by the 3261 spec and the loose-routing
>>>> mechanism is provided instead."
>>>>
>>>> However, the maddr is still being utilised by systems to populate the
>>>> alternate routes.
>>>>
>>>> Any help regarding how can we handle the 302 will be useful for us.
>>>> Using
>>>> Transformations module in onreply_route block did not help our cause.
>>>> Also, we have tried using replace_body and replace_body_all with
>>>> hard-coded values for the ip addresses did not do the trick.
>>>>
>>>> Please help us in this regard.
>>>>
>>>> Regards,
>>>> Sai.
>>>>
>>>>
>>>> _______________________________________________
>>>> 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
>>>
>>>
>>>       
>>     
>
>
>
>