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GRL 4G - the GSM and VoLTE voice relay with 2 independent relays and 4 inputs

Two inputs for switching contacts, two galvanically isolated outputs, one switching contact controlled by ringing from a

The "Line Switch DIN" device contains 4 relays whose switching contacts are remotely controlled via a telephone line tone dialing.

The ODYSEUS is a compact PBX designed to connect 1 analog PSTN landline and 4 analog extensions (internal lines) w