[Serusers] UAC module: multiple PSTN gateways

[Cameron Beattie]

Is it possible to specify multiple authentication credentials within the UAC 
module? What I want to do is access multiple PSTN gateways that each require 
different credentials. The basic purpose of this is to allow least cost 
routing.

Example
Provider 1 offers cheap calling to +44 (UK)
Provider 2 offers cheap calling to +1 (US)
When user dials a 44 destination ser should relay to Provider 1 gateway, 
which will require authentication using Credential 1.
When user dials a 1 destination ser should relay to Provider 2 gateway, 
which will require authentication using Credential 2.

Any advice would be greatfully received.

Regards

Cameron