In two weeks time I've had 2 MLS-12 phones bite the dust on me. Same mode of failure- constant uninterrupted ringing and loss of functionality. I can still pick up the phone and get DT but none of the buttons work. If it had been one, I would have chalked it up to just being the end of its life, but two has me a little concerned. These are on my ACS R6, and the two failures were on different ports of different modules, one was plugged into the processor x15 the other was in a 308EC on x22. Any thoughts, or have these phones just met their end? I'm curious if anyone else has seen this phenomenon.