H - Electricity – 04 – M
Patent
H - Electricity
04
M
344/15
H04M 3/58 (2006.01) H04M 3/54 (2006.01) H04M 9/00 (2006.01) H04Q 1/30 (2006.01) H04Q 3/62 (2006.01)
Patent
CA 1216050
- 24 - CALL TRANSFER METHOD AND CIRCUITRY Abstract In the disclosed call transfer method and apparatus, 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 which is being transferred to the present answering party. Line status LEDs at each station set gives specific visual indications to trace the progress of a call transfer.
458005
Carson Robert A.
Fenton Francis M.
Jones David F.
American Telephone And Telegraph Company
Kirby Eades Gale Baker
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