There is a specific number which is a toll free number that we can not dial from our system. It is set up in the ars ana table exactly like the entry for 1800 but when we dial it we are able to dial the entire string then we get a busy signal. It can be dialed successfully from any cell phone we use. It is a 1866 toll free number. I can dial any other 1866 number with no problem even with the same prefix. Is there any where else in the AVAYA CM system this could be blocked? We are on CM 5.1.