National Acoustic Laboratories Library

P.342. Series P: Telephone transmission quality, telephone installations, local line networks. Subscribers lines and sets. Transmission characteristics for telephone band (300-3400 Hz) digital louspeaking and hands-free telephony terminals

P.342. Series P: Telephone transmission quality, telephone installations, local line networks. Subscribers lines and sets. Transmission characteristics for telephone band (300-3400 Hz) digital louspeaking and hands-free telephony terminals - Geneva ITU May 2000

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