[OpenSIPS-Users] Relay Subscribe/Notify for MWI

[Bogdan-Andrei Iancu]

David,

Do you use the "uac" module to do the changes over the TO/FROM headers or ??

Regards,

Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.com

On 21.08.2014 16:31, Sidwell, David wrote:
>
> Hi Bogdan,
>
> Currently the SUBSCRIBE is not handled locally, but forwarded to a 
> server which implements RFC 3842.
>
> In my application, the UAC’s register with OpenSIPS (Registrar module) 
> which in turn registers them with the external server (Registrant module).
>
> The TO/FROM headers of further requests are modified to reflect the 
> domain of the server and the requests are forwarded to the server.
>
> In-dialog responses are automatically modified with the reverse 
> modifications and forwarded back to the UAC.
>
> This works fine for all requests except the SUBSCRIBE/NOTIFY.
>
> Ideally the re-SUBSCRIBE would contain the same modifications, and the 
> NOTIFY’s would have the reverse modifications.
>
> (I am OK with manually making the transformations, but the 
> re-SUBSCRIBE’s do not seem to be processed via the route script)
>
> I am open to a solution where opensips handles the subscribes 
> (presence_mwi?), but I don’t see any way I could retrieve the MWI 
> indication from the server.
>
> Thanks,
>
> Dave
>
> *From:*Bogdan-Andrei Iancu [mailto:bogdan at opensips.org]
> *Sent:* Thursday, August 21, 2014 3:54 AM
> *To:* OpenSIPS users mailling list; Sidwell, David
> *Subject:* Re: [OpenSIPS-Users] Relay Subscribe/Notify for MWI
>
> Hi David,
>
> How do you change the TO / FROM hdrs in initial SUBSCRIBE ?? Is the 
> SUBSCRIBE handled locally (opensips as presence server) or you forward 
> it further ?
>
> Regards,
>
> Bogdan-Andrei Iancu
> OpenSIPS Founder and Developer
> http://www.opensips-solutions.com
>
> On 16.08.2014 00:07, Sidwell, David wrote:
>
>     Hello,
>
>     I am using OpenSIPS in an application relaying SIP messaging
>     between clients and server with modifications to the “To”, “From”
>     and “Contact” headers.
>
>     This is working well for call control,  however the server also
>     provides MWI via Subscribe/Notify, and unfortunately this does not
>     work properly.
>
>     There are two basic issues:
>
>     1.Although the initial SUBSCRIBE can be modified and relayed
>     successfully, it cannot create a dialog. Any subsequent
>     “in-dialog” re-subscription messages seem to be automatically
>     relayed but the “To”, “From” and “Contact” modifications are not
>     included. These re-subscribes do NOT go through the configuration
>     file route script so there is no opportunity to make any
>     additional modifications.
>
>     2.“In-dialog” NOTIFY messages from the server do not get routed
>     back to the client, but appear in the configuration file route
>     script with “totags”. These can be manually routed back to the
>     subscriber but any attempt to modify the To and From headers fails
>     (due to the presence of the totags).
>
>     Questions:
>
>     -Is there any way to configure OpenSIPS to allow for automatic
>     relaying of the Subscribe/Notify messages in an application such
>     as this?
>
>     -Is there a way to make use of the Presence modules to achieve the
>     same function (The server will not issue PUBLISH commands).
>
>     Thanks,
>
>     Dave
>
>
>
>
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