Adapter for connecting a modem to a digital private branch excha

Details Adapter for connecting a modem to a digital private branch excha Adapter for connecting a modem to a digital private branch excha

1995-08-14

1997-10-14

Woo, Stella

Telephonic communications

Telephone line or system combined with diverse electrical...

Having transmission of a digital message signal over a...

379 94, 379 98, 379100, H04M 1100

Patent

active

056779461

ABSTRACT:
A device for connecting a data device having an analog output to a digital telephone having a base unit and a handset with first analog signals being coupled bi-directionally between the base unit and the handset. The device includes a first input receiving the first analog signals from the base unit, a second input receiving the first analog signals from the handset, a third input receiving a second analog signal from the analog output of the data device, and a switch coupled to the first, second and third inputs for selectively bi-directionally coupling the second analog signal to the base unit and the first analog signals bi-directionally between the base unit and the handset.

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patent: 5367563 (1994-11-01), Sainton
patent: 5386438 (1995-01-01), England
patent: 5481598 (1996-01-01), Bergler et al.

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