Not sure if anyone is doing this, but we inherited a group whose external E.164 #'s end in 0xxx. Unfortunately, we had to give them non matching internal 4 digit extensions because of the leading 0. Is anyone utilizing 0xxx as an extension range? Right now, 0 in my environment is a VDN that routes to our receptionists (who would dial 0 internally is beyond me). What other areas of the system would utilize 0 that I'd have to be aware of? I have VM, which there is a 0 out option, but not sure if that's a gamebreaker. Any ideas would be of great help.. would help me unlock almost 1000 usable numbers.