Alarm systems. Alarm transmission systems and equipment - Requirements for equipment used in systems with voice communicators using the public switched telephone network Ingestion-build-48974 It is intended to be

It is intended to be used by service providers in the presentation and monitoring of their services but is also recommended for use by authorities and agencies responsible for the procurement of PPT services in the preparation of invitations to tender

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Alarm systems. Alarm transmission systems and equipment - Requirements for equipment used in systems with voice communicators using the public switched telephone network Ingestion-build-48974 It is intended to beAlarm systems Alarm transmission systems and equipment Part 2 4: Requirements for equipment used in systems with voice communicators using the public switched telephone network Executive summary Requirements for alarm transmission equipment used in voice communicator systems utilizing the public switched telephone network. Abstract This European Standard specifies additional requirements to those specified in EN 50136 2 1 for equipment used in voice