external calls

When trying to set call forwards to an external number, the call gets rejected and I hear a message that this is not a valid extension. I could verify that call routing to external number does not work only if call comes from extern. Redirect works when calling from an internal extension. The...

i have a customer in Israel, i provided him with a Israeli DID and the number is for example +972 2 3749789 i would like the outbound caller id should show 02-374-9789 but instead fusion sends out either +023749789 or 23749789, Provider is IDT and they are saying it depends how I send out the...