Extension Routing Module

I have installed this module and thought all was well, but have noticed that calls from one extension are going out on a the wrong trunk/outbound route.

I have double checked the extension setting and made sure the outbound route matches, but cannot see an issue.

Anyone with thoughts?

i think it would be helpful if you posted some version info and config info,

Asterisk Ver.
Extension Routes

What config info can I post to help?

I think I have found the problem, but not a solution.

The number being called is in a ring group. I cannot see a way of forcing the external number to be dialed via a specific outbound route/trunk, so, it defaulting to one - the wrong one!