3 weeks ago option 11 suddenly will not allow long dist. no programming has been done since that time. I monitored the cot and it allows dialling but on the 7th digit it sends a disconnect tone. But the toll free no 1800 it works ok. and I also changed the rli to a toll free fli but it still the same. I even up load a copy of 2006 and it still behaves the same. I even compare the programming of a working switch at another site and they are the same. I suspect that the attendant must have restricted it accidentally.