How to connect a parallel phone. Encyclopedia of radio electronics and electrical engineering
Encyclopedia of radio electronics and electrical engineering / Telephony
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Sometimes it is necessary to install a parallel telephone so as not to load the telephone line. You can do this as shown in the figure.
Toggle switches SA1 and SA2 are located near the corresponding telephones. If the station does not answer when you pick up the handset, you need to move the corresponding toggle switch to another position. Likewise with the other device.
Toggle switches can be of any type. You can use buttons, for example, P2K.
Author: G.Sauridi, Ryazan
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