Telephonic communications – Special services – Conferencing
Patent
1986-05-29
1988-04-26
Dwyer, James L.
Telephonic communications
Special services
Conferencing
379158, H04M 356
Patent
active
047410264
ABSTRACT:
A signaling arrangement where all terminal configuration data is stored in a switching system, but where each user terminal responds to a message from the system, defining one of the user terminal buttons as the selected call appearance at the terminal, by operating in a functional signaling mode to communicate with the system using functional messages concerning a call at the selected call appearance. Idle and ringing preference methods for use in terminating calls and auto-drop and auto-hold alternatives for use when moving from one call appearance to another are disclosed as well as methods for holding or dropping calls. Implicit and explicit conferencing methods are also disclosed.
REFERENCES:
patent: 4196316 (1980-04-01), McEowen et al.
patent: 4338495 (1982-07-01), Bloch et al.
patent: 4383137 (1983-05-01), Aikawa et al.
patent: 4512016 (1985-04-01), Fulcomer, Jr. et al.
patent: 4520235 (1985-05-01), Morikawa et al.
"Digital Access Signalling System", CCITT, The International Telecommunication Union, vol. VI--Fascicle VI.9, Oct. 8-19, 1984, pp. 57-193.
Baxter Leslie A.
Campbell James R.
Davidson Wayne A.
Fandre Laura M.
Lund Robert M.
American Telephone and Telegraph Company AT&T Bell Laboratories
AT&T Information Systems
Dwyer James L.
Watland Ross T.
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