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BS 8521:2009

BS 8521:2009

BS 8521:2009 Specification for dual-tone multi-frequency (DTMF) signalling protocol for social alarm systems

standard by BSI Group, 04/30/2009

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


All current amendments available at time of purchase are included with the purchase of this document.

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Published: 04/30/2009 ISBN(s): 9780580550799 Number of Pages: 30 File Size: 1 file , 820 KB Product Code(s): 30129608, 30129608, 30129608

 
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