[Serusers] from & remote-party-id manipulation

Linus Surguy linus at magrathea-telecom.co.uk
Thu Aug 5 09:57:58 UTC 2004

> BTW, very nice email domain -- magrathea-telecom ;-), I am sure you will
> like the Call-ID and CSeq we put into aliases table, see
> http://lists.iptel.org/pipermail/serdev/2004-July/002465.html

Grin - I've already noticed that!

> for more details.
> > a) Incoming call has no remote-party-id, but does have a numeric from
> > address. Create a remote-party-id based on the from address.
>   Stock ser makes it possible to create the remote-party-id based on the
>   digest credentials username. When you perform digest authentication,
>   it will retrieve the rpid value either from the database (subscriber
>   table) or from radius server and create a new remote-party-id header
>   field.

Yes, we are already using that for our basic features.

> > b) Either we have a remote-party-id passed with the initial call, or
> > the one we constructed in (a). Now prepend a digit string pulled from
> > the database to the user part of the remote-party-id uri.
>   If you prepend the same string to all numbers then you can configure
>   it in the configuration file of ser using rpid_prefix and rpid_suffix
>   parameters.
>   If you need it on per-subscriber basis then you can include the prefix
>   directly in rpid column in subscriber table.

We want to prefix on a per-subscriber basis to whatever has been passed with
the incoming INVITE.

Many thanks for the replies - I think that I am actually going to have to
write a module to do this, but I don't think that it should be too


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