@scifi.guy, this works well for my kind of calling card. I have a problem though, I am unable to get a comma when trying to entire multiple number formats in the exclude field, can't find anything on this in the thread.

As regards the call routing discussion that is underway, I am not an expert, I just dabble with these things. I had a Linksys Sipura ATA a while back and that used to something called a dial plan that you could configure to route calls through lowest cost providers based on dialled number format.

Not sure if links are permitted, but I am pasting a link that Linksys-Sipura provided for help in configuring these devices.

http://ui.linksys.com/files/SIPURA/S...nced_Voice.htm

Look at Voice -> FXS 1 ->Dial Plan, not sure if this helps you gentlemen.

I can also see if there is a User Guide/ Technical Guide somewhere if it helps.