Ed is probably correct. Mitel's don't play well with the 28-32 volt 'lines' that most of the TWC units work with. Make them prove that the on-hook line voltage is 48-52 volts.

Also, have them check for call waiting on ALL the lines! YOU DO NOT WANT CALL WAITING. Mitel see's CW as a disconnect signal, and it disconnects.


When I was young, I was Liberal. As I aged and wised up, I became Conservative. Now that I'm old, I have settled on Curmudgeon.