Communication apparatus

[54] COMMUNICATION APPARATUS

[75] Inventors: Michihiro Izumi, Yokohama; Shoichi Takashima, Tokyo, both of Japan

[73] Assignee: Canon Kabushiki Kaisha, Tokyo,
Japan

[21] Appl. No.: 715,020
[22] Filed: Jun. 13,1991

Related U.S. Application Data

[63] Continuation of Ser.'No. 363,860, Jun. 9, 1989, abandoned.

[30] Foreign Application Priority Data

Jun. 13, 1988 [JP] Japan 63-143761

Jun. 27, 1988 [JP] Japan 63-156931

Aug. 15, 1988 [JP] Japan 63-201933

Dec. 1, 1988 [JP] Japan 63-304664

[51] Int. C1.5 H04M 1/64

[52] U.S. CI 379/354; 379/355;

379/201; 379/210

[58] Field of Search 379/354, 355, 201, 210,

379/211, 212

[56] References Cited

U.S. PATENT DOCUMENTS

4,266,098 5/1981 Novak .

4,277,649 7/1981 Sheinbein .

4,304,968 12/1981 Klausner et al 379/355

4,451,705 5/1984 Burke et al 379/211

4,567,323 9/1986 Lottes et al 379/201

4,672,660 6/1987 Curtin .

4,674,115 6/1987 Kaleita et al 379/211

4,709,387 11/1987 Masuda 379/355

4,723,273 2/1988 Diesel et al 379/211

4,802,202 1/1989 Takahashi et al. .

4,817,133 3/1989 Takahashi et al 379/355

4,894,861 1/1990 Fujioka 379/374

FOREIGN PATENT DOCUMENTS 3128529 2/1983 Fed. Rep. of Germany .

Primary Examiner—James L. Dwyer

Assistant Examiner—M. W. Shehata

Attorney, Agent, or Firm—Fitzpatrick, Cella, Harper &

Scinto

[57] ABSTRACT

A communication apparatus includes a memory for storing extension number information or transfer destination information in association with calling party number information, a unit for receiving calling party number information sent from a calling party at a called party, a unit for comparing the calling party number information received by the receiving unit with the calling party number information stored in the memory; and a unit for notifying a call reception to an extension terminal equipment identified by the extension number information associated with the calling party number information received by the receiving unit, or transferring a call reception to the transfer destination associated with the calling party number information received by the receiving unit, respectively, in accordance with the comparison result by the comparing unit.

4 Claims, 18 Drawing Sheets