Fig.1
It is convenient to perform as separate plugs, plug instead of a telephone (for example, when a long period of your absence).
Author: Alexey Bogachev, Perm; Publication: N. Bolshakov, rf.atnn.ru
Telephone line protection
In cases where you want to be protected from unauthorized access to a telephone line, an easier way, you can use the scheme, represented in Fig. 1.This device blocks as dialing and ringer.
- Written by: Super User