BE881361A - Dispositif de signalisation d'attente d'appel - Google Patents

Dispositif de signalisation d'attente d'appel

Info

Publication number: BE881361A
Authority: BE; Belgium
Prior art keywords: signaling device; call waiting; waiting signaling; call; waiting
Prior art date: 1979-05-02

Application number

BE2/58369A

Other languages

English (en)

Inventor

J Jusinskas

Original Assignee

Gte Automatic Electric Lab Inc

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1979-05-02

Filing date

1980-01-28

Publication date

1980-05-16

1980-01-28 Application filed by Gte Automatic Electric Lab Inc filed Critical Gte Automatic Electric Lab Inc

1980-05-16 Publication of BE881361A publication Critical patent/BE881361A/fr

Links

230000011664 signaling Effects 0.000 title 1

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/428—Arrangements for placing incoming calls on hold
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements

Landscapes

Engineering & Computer Science (AREA)
Signal Processing (AREA)
Computer Networks & Wireless Communication (AREA)
Devices For Supply Of Signal Current (AREA)

BE2/58369A 1979-05-02 1980-01-28 Dispositif de signalisation d'attente d'appel BE881361A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US06/035,139 US4298774A (en)	1979-05-02	1979-05-02	Call waiting signal arrangement

Publications (1)

Publication Number	Publication Date
BE881361A true BE881361A (fr)	1980-05-16

Family

ID=21880893

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE2/58369A BE881361A (fr)	1979-05-02	1980-01-28	Dispositif de signalisation d'attente d'appel

Country Status (4)

Country	Link
US (1)	US4298774A (fr)
BE (1)	BE881361A (fr)
CA (1)	CA1149089A (fr)
IT (1)	IT1131125B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS61179647A (ja) *	1984-12-29	1986-08-12	Fujitsu Ltd	サ−ビス表示用ランプの点灯方法
US4660220A (en) *	1986-02-25	1987-04-21	Kraus Constantine R	No answer mode for telephone systems
US5384832A (en) *	1992-11-09	1995-01-24	Commstar, Inc.	Method and apparatus for a telephone message announcing device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3050592A (en) *	1959-10-01	1962-08-21	Automatic Elect Lab	Message waiting indicating circuits
DE2514657A1 (de) *	1975-04-03	1976-10-14	Deutsche Telephonwerk Kabel	Schaltungsanordnung fuer einen ringleitungsspeisesatz mit bedienungsteil
US4081613A (en) *	1976-05-14	1978-03-28	International Telephone And Telegraph Corporation	Bi-directional signalling arrangement for telecommunications systems
JPS5328317A (en) *	1976-08-30	1978-03-16	Hitachi Ltd	Control system of subscriber's calling signal
US4140882A (en) *	1977-09-12	1979-02-20	Wescom Switching, Inc.	Methods and apparatus for special status indication in telephone systems

1979
- 1979-05-02 US US06/035,139 patent/US4298774A/en not_active Expired - Lifetime
1980
- 1980-01-28 BE BE2/58369A patent/BE881361A/fr not_active IP Right Cessation
- 1980-04-24 CA CA000350615A patent/CA1149089A/fr not_active Expired
- 1980-05-02 IT IT21740/80A patent/IT1131125B/it active

Also Published As

Publication number	Publication date
US4298774A (en)	1981-11-03
IT8021740A0 (it)	1980-05-02
CA1149089A (fr)	1983-06-28
IT1131125B (it)	1986-06-18

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Legal Events

Date

Code

Title

Description

1990-07-31

RE

Patent lapsed

Owner name: GTE AUTOMATIC ELECTRIC LABORATORIES INC.

Effective date: 19900131