Adtran Netvanta 7100 – The Number You Have Dialed is not in Service

I have a love hate relationship with our Adtran Netvanta 7100 PBX.  It is an all-in-one type of device that serves as router, POE switch, and PBX.  What makes this device so awesome is the amount of features you get at a low cost when compared to other comparable devices.  The web based graphical user … Continue reading Adtran Netvanta 7100 – The Number You Have Dialed is not in Service

ADTRAN IP 706 / 712 Phone Blank LCD Screen

The LCD screen on two Adtran IP 712 phones recently went blank.   Other than having a blank LCD screen, the phones seem to be working fine; i.e., phone calls keep coming in and are able to be picked up.  The functionality of buttons was not tested. The Adtran IP 712 phones are accessible through … Continue reading ADTRAN IP 706 / 712 Phone Blank LCD Screen