Analog/digital telephone test set

Details Analog/digital telephone test set Analog/digital telephone test set

H - Electricity

04

M

379/2

H04M 1/24 (2006.01) H04M 3/30 (2006.01)

Patent

CA 2029679

ABSTRACT An analog/digital telephone test set for telephone lines using dial pulse, DTMF, and digital signalling having a DTMF decoder for converting DTMF tones for application to a microprocessor which converts them, for example, to 16 bit digital commands transmitted as 8 kHz bursts.

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