Wrote this once already, forum crashed when I hit POST...
OBi 110 with no POTS line. Phone wire plugged into the OBi then connects with the entire house's wiring.
I have an AT&T wireless system with 4 phones.
SOMETIMES, when I hit the speaker button on the phone, I hear a loud click and the phone goes dead and the call is lost. Have to put it in the charger to get it back to life and connected to the system.
I have a Panasonic wired phone with a speaker button that never does this.
I never had this problem before the OBi with my POTS service and the same AT&T phones.
It happens on multiple AT&T phones. I'm wondering if it has something to do with the phone pulling more voltage for the speaker, which kills the connection? I do NOT have to reboot the OBi, and it does not reboot itself (I checked). Call history shows the call ending.
My phone port voltage is:
LoopCurrent 0
VBAT 57 V
TipRingVoltage 45 V
When I have a dial tone with the Panasonic (on speaker):
LoopCurrent 19 mA
VBAT 19 V
TipRingVoltage 11V
When I have a dial tone with the AT&T (whether on or off speaker):
LoopCurrent 19 mA
VBAT 17 V
TipRingVoltage 8V
Ideas?