[cisco-voip] Policy routing on Dial Plan

[Anthony Kouloglou]

Is there a way to make something like policy routing on a CCM dialplan?
I want to have route patterns that look up the source number of the 
calling extension and no the destination.

So,
the case is that you have 2 voice gateways on 2 different countries and 
one site at each country, but you want to use only one number to dial 
external calls (9 for example)

Assume that at site 1 there is one CCM cluster.
1st site extensions 1xxx and vgw A
2nd site extensions 2xxx and vgw B

I will configure:
One Route list with vgw A first and B second      --->RL1
and A second route list with vgw B first and A second---->RL2

One route pattern which says: if the calling number is 1xxx then Route 
list 1
and another: if the calling number is 2xxx then Route list 2

In that way, you don't have to assign one external number / site. 
Because what will happen if you have more than 10 sites.
i don't thing that using 2 digits to reach outside lines is handy!!

Any ideas?