AudioCodes Mediant 1000B - Connecting the FXS Analog Lifeline Phone; Figure 5-12: RJ-11 Connector Pinouts for Analog Lifeline

Mediant 1000B Gateway & E-SBC
Hardware Installation Manual 50 Document #: LTRT-41441
5.3.3 Connecting the FXS Analog Lifeline Phone
The device supports Analog Lifeline. If the device loses power, for example, due to a power
outage or the unplugging of its power cable, it automatically routes calls from a POTS
telephone ("lifeline" phone), connected to an FXS port, to the PSTN (instead of the IP
network).
Notes:
• Analog Lifeline is supported only on FXS modules.
• An analog Lifeline can be setup for each FXS module installed in the chassis.
The analog Lifeline is provided only by Port I on an FXS module. This port connects to the
POTS phone and the PSTN or PBX, using a splitter cable. The splitter cable connects pins
1 and 4 to another source of an FXS port, and pins 2 and 3 to the POTS phone, as shown
in the figure below:
Cabling specifications:

Cable: Splitter cable adaptor with RJ-11 on one end and two RJ-11 jacks on the other

Connector: RJ-11

Connector Pinouts:
Figure 5-12: RJ-11 Connector Pinouts for Analog Lifeline