This is what happens.
User sets phone (ext. 4454) to call forward all to an external phone number (555-5555)i.e. a cell phone. When someone outside of the system (555-5551)calls the 4454 number it is forward back out the PRI as the number that called into the system. With our current provider that call cannot be completed as it is not an allowed number. How do I get the call forward all number to show up on the PRI as xxx-xxx-4454? The reason I know it is doing this is from q931 debug on the router connected to the PRI.