Communication apparatus for responding to calls to a different a

Telephonic communications – Supervisory or control line signaling – Signal reception at substation

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Details

379376, 379210, 379214, 370524, H04M 302

Patent

active

055839304

ABSTRACT:
In a communication system having a plurality of communication apparatuses that are connected to one line, each communication apparatus has a detection circuit for detecting a call signal from the line to another communication apparatus connected to the line. Each communication apparatus also has a circuit that informs the operator at the communication apparatus of such call signal or a device for altering such call signal to a call signal to the communication apparatus itself.

REFERENCES:
patent: 3701855 (1972-10-01), Reynolds
patent: 3951248 (1976-04-01), Feiner et al.
patent: 3956595 (1976-05-01), Sobanski
patent: 4209668 (1980-06-01), Weinberger et al.
patent: 4296282 (1981-10-01), O'Neil et al.
patent: 4519072 (1985-05-01), Fechalos et al.
patent: 4567324 (1986-01-01), Smith et al.
patent: 4626627 (1986-12-01), Van Gilluwe et al.
patent: 4636589 (1987-01-01), Lee
patent: 4694483 (1987-09-01), Cheung
patent: 4722082 (1988-01-01), Furuya et al.
patent: 4723273 (1988-02-01), Diesel et al.
patent: 4792800 (1988-12-01), Fujioka et al.
patent: 5073922 (1991-12-01), Okada
Philips Telecommunication Review, vol. 44, No. 1, Aug. 1986, pp. 26-35, van Kleef, "The computer voice (VPU) assisting PABX operators etc.".
Int. Symp. Subscriber Loops and Services, Tokyo, Sep. 1986, pp. 150-155, Fujioka et al., "Integrated call control and ISDN basic access etc.".
NTZ Nachrichtentechnische Zeitschrift, vol. 40, No. 1, Jan. 1987, pp. 46-50, Wagner, "ISDN-Endgerate etc."(In German).
Pat. Abs. Jp. vol. 7, No. 76, Mar. 30, 1983 (JP-A-583453).
Pat. Abs. Jp. vol. 10, No. 113, Apr. 26, 1986 (JP-A-60248096) Abstract only.
Pat. Abs. Jp. vol. 10, No. 223, Aug. 13, 1986 (JP-A-6166455) Abstract only.
Third Int. Network Planning Symp. "Networks 86", pp. 67-73.
Polanco et al. "ISDN Numbering and Interworking".
Ericsson Review, vol. 61, pp. 14-19, May 1984, "Voice and data workstations and services in the ISDN", Ericcson et al.
Proc. National Communications Forum, vol. 40, part I, 1986, pp. 596-604, "Basic rate interface capabilities to support ISDN terminals", Chriss et al.
Proc. Int. Switching Symposium, May 7-11, 1984, "Implementation and experience of ISDN in AXE", Como et al. pp. 1-8.
Philips Telecommunication Review, vol. 43, No. 2, Jun. 1985, pp. 150-163, Hesdahl, "Digital voice/data terminals and data-terminal adaptors".
Data Communications, vol. 16, No. 11, Oct. 1987, pp. 237-255, "standards makers cementing ISDN subnetwork layers".
Electrical Design News, vol. 32, No. 2, Jan 22, 1987, pp. 167-174, O'Toole, "ISDN terminals simplify data transmissions".
Nachrichtentechnik Electronik, vol. 37, No. 10, 1987, pp. 368-374, Winkler et al., "ISDN-Konzept" (in German).

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