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SIA AV-01-1997.11
Audio Verification Standard - Protocol for Audio Verification and Two-Way Voice - Monitoring Service Command Set
This standard describes the minimum requirements for command sets for a monitoring service operator pressing buttons on a touch-tone phone to control an audio verification system at the customer's premises. The monitoring service operator generates dual-tone multi-frequency (DTMF) signals by pressing buttons on a touch-tone phone connected in parallel with the monitoring service receiver's phone line. The audio verification system at the premises receives and interprets these signals.
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Security Industry Association [sia]
