BS 8521:2009

Specification for dual-tone multi-frequency (DTMF) signalling protocol for social alarm systems

BSI Group , 04/30/2009

Publisher: BS

File Format: PDF

$132.00$264.00

Cross References:BS EN 50134-1BS EN 50134-3ES 201 235-1 ES 201 235-2ES 201 235-4ITU-T Recommendation G.711:1988

Published: 04/30/2009

Pages: 30

File Size: 1 file , 820 KB

ISBN: 9780580550799

Language: English

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