H - Electricity – 04 – M
Patent
H - Electricity
04
M
344/15, 379/35
H04M 3/50 (2006.01) H04M 3/51 (2006.01) H04M 3/533 (2006.01) H04M 3/54 (2006.01) H04M 3/58 (2006.01) H04Q 3/545 (2006.01)
Patent
CA 1337570
This invention relates to business communication systems and, in particular, to message service system apparatus that provides a call transfer capability between a message service system and any of the telephone station sets and trunk circuits of a telephone switching system. The business communication system provides a number of message service systems (voice mail, message center, etc.) and integrates the control of these message service systems so that a calling party can transfer an existing call connection between the message service system and any telephone station set, trunk circuit or other message service system served by the business communication system.
540838
Grady Steven Clifford
Greenfield Jeffrey Louis
Lothrop John Rodney
Witmore Ronald Kirk
American Telephone And Telegraph Company
Kirby Eades Gale Baker
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