Drrich1101
Technical User
There are 12 DT300 phones that get their power from the main pbx. Recently a few of the phones lost display but still work perfectly. The system phones are connected through a CD-16DLCA interface card, and when I unplug one of the rj45 connectors (decreasing power load) the phones with no display then illuminate and are again fine. After re-plugging in the fourth rj45, all phones stay working and randomly over time, those displays will then go out again. I changed the coin battery, but that didn’t help. Any ideas? It seems like a power issue- for some reason the system is not supplying enough power for all 12 phones. Any help would be greatly appreciated!