Call transfer method and circuitry

Details Call transfer method and circuitry Call transfer method and circuitry

1983-08-15

1985-12-24

Brown, Thomas W.

179 99LS, H04M 358, H04Q 130

Patent

active

045608377

ABSTRACT:
In the disclosed call transfer method and circuitry, audibly distinguishable ringing signals at a station set enable an answering party to determine whether a received call is either the original call or a previously answered call. Line status LEDs at each station set give specific visual indications to trace the progress of a call transfer.

REFERENCES:
patent: 3665112 (1972-05-01), Blake et al.
patent: 3800098 (1974-03-01), Evans et al.
patent: 4338495 (1982-07-01), Bloch et al.
"Horizon.RTM. Communication System: Custom Service for Small Businesses", Bell Laboratories Record, vol. 55, No. 10, Nov. 1977, pp. 271-275.

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