I tried your plan and their north american plan and it did not work for my and my pap2t.
SIP Broker Wiki : LinkSys and Sipura dial plans
L:20,S:7,( x | *xx | 1[2-9]xx[2-9]xxxxxxS0 <:@sipbroker.com> | [x*][x*]. <:@sipbroker.com> | <#:>[x*][x*]. )
I tried appending and prepending * and # in differnet combinations and I got a fast busy.
I would like all numbers to be looked up in sipbroker.com autmatically (I believe I can send toll free to sipbroker too) and all others that fail go to my trunk prepended with a 9