Connect the POTS protection between Abilis and the POTS phones following the scheme below:
Figure 3.10. Connecting POTS protection
The metal case must be connected to the Abilis metal case or to the earth of the electrical system.
Interesting chapters:
Section 2.9.9, “POTS protection”;
Section 2.9.8, “POTS 4/8/16”;
Chapter 49, CTI System;
Section 75.2, “How to configure FXS (POTS) ports for analog telephones or FAX machines”.