Custom PDU's, next feature?

Hello devel,

I hope to get in contact of some of the developers, or people who can
tell me more about the future features.

A gateway provider which we are going to work with, wants to send the
carrier_id in the PDU. So that would be a custom field.

It would be nice if one could define a TVL in de configuration, and
then post this value with the get-url or post-url function.

I understood that currently there is no way to manually parse the TVL
that aren't standard in SMPP.

Any other solution?

Kind regards,
Roland.