Quote from: yaworski on September 04, 2019, 08:03:16 AM
A home phone network is a bus. If you connect your ObiTalk box to a wall jack, every pihone on the net is connected to the Obitalk.
So my Obitalk box is plugge into a wall jack near my router. I then have a phone in the kitchen and another in the living room.
All that is fine until an unwanted voltage is introduced to that "bus" and fries the SLIC chip in the OBi. The SLIC chip is the interface between the analogue PHONE jack(s) on the OBi and the digital processing. Fried SLIC means no dial tone etc.
So where can an unwanted voltage come from? In most cases from an external telco line that has not been (properly) disconnected from the internal house phone wiring. Sooner or later something can happen such as:
1. A thunderstorm with a lightning strike causes a voltage spike to appear on the cable, even at some distance from you, and it travels along the external cable into your OBi. Zap!
2. The telco, who owns that cable (you do not) tests the cable. One of the tests puts a voltage between the two wires. Your OBi's PHONE port is subjected to that voltage. Zap!
The acid test is to log into your dashboard at
obitalk.com and enter Expert Mode. Unplug the phone from the OBi. Then click on Status and then on Phone Port Status. Look at the VBat and TipRingVoltage numbers. If they are zero or blank then your SLIC chip is dead. No repair. New OBi time. And if you don't know what "properly disconnected" above means get someone who does. Else you will sooner or later have another zapped OBi.