Telephonic communications – Private or single line system – Doorbell system
Patent
1993-12-06
1995-11-14
Chin, Stephen
Telephonic communications
Private or single line system
Doorbell system
379201, H04M 160
Patent
active
054673879
ABSTRACT:
In a method for influencing a signaling procedure communication terminal equipment of a communication system, subscriber performance features are displayed on a display at the communication terminal equipment. The individual subscriber performance features are then optically marked by means of two navigation keys and the marking is controlled in a forward direction and in a reverse direction. A subscriber performance feature is selected by actuating an activation key that is located at the communication terminal equipment.
REFERENCES:
patent: 4425627 (1984-01-01), Eibner
patent: 4908853 (1990-03-01), Matsumoto
"ISDN in the Office--HICOM", Telcom Report and Siemens Magazine COM, Dec. 1985, pp. 36-41.
IBM Technical Disclosure Bulletin vol. 33 No. 4 Sep. 1990, "Computer-Telephone Software Interface".
Chin Stephen
Kim Kevin
Siemens Aktiengesellschaft
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