I haven't had problems with dropped calls but several times this month I have picked up the phone and had no dial tone. When this hapens both the phone 1 and 2 lights were off or sometimes the phone 1 light was off and phone 2 was on. During the outage the Internet light on the adapter is blinking. I don't understand why the adapter can't detect that the connection is lost and reconnect. I always have to power cycle the adapter. I'm still working with support on this, but it hasn't been resolved. I really miss the stable and boring CallVantage service.
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