mmm, that one really depends on what you want to do. if you're going to use all of them for all calls as Tommer mentions it's easier to have just one RG.
if you have one for local and other for LD or international then you would need to create different route groups.
also if you have several providers and one offers you a better rate then also having several route groups is a good idea.
in the end it really depends on the way you want to handle the calls, and what usage you're going to give to each PRI.
we really don't have a best practice on that since each scenario can be different, but we can make the necessary adjustments to make things work as you want them thru the route groups and route lists.
HTH
javalenc
if this helps, please rate
HTH
java
if this helps, please rate
