1999/303/EC: Commission Decision of 12 April 1999 on a common technical regulation for connection to the analogue public switched telephone networks (PSTNs) of terminal equipment supporting the voice telephony justified case service in which network addressing, if provided, is by means of dual tone multi-frequency (DTMF) signalling (notified under document number C(1999) 874) (Text with EEA relevance) in England
EU Decision 1999/303 · Adopted 12 April 1999
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