I had a customer today 'lose' all the programmable buttons (BLF - Directed Pickup - etc) on all their phones (Yealink 42G & 46G). This system is running V12 and the phone firmware is current. I looked thru the server logs from close of business yesterday to this morning and nothing jumps out as to why this happened. In the past an extension here and there would do the same but this time it was a system wide occurance. Any help will be appreciated.