GB2122843B - Telephone interface unit - Google Patents

Telephone interface unit

Info

Publication number: GB2122843B
Authority: GB; United Kingdom
Prior art keywords: interface unit; telephone interface; telephone; unit; interface
Prior art date: 1982-03-30
Legal status (The legal status 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 status listed.): Expired

Inventor

Emrys Williams

Allen Timpany

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

GUESTEL Ltd

Original Assignee

GUESTEL Ltd

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.)

1982-03-30

Filing date

1982-03-30

Publication date

1985-10-30

1982-03-30Application filed by GUESTEL LtdfiledCriticalGUESTEL Ltd

1982-03-30Priority to GB08209271ApriorityCriticalpatent/GB2122843B/en

1984-01-18Publication of GB2122843ApublicationCriticalpatent/GB2122843A/en

1985-10-30Application grantedgrantedCritical

1985-10-30Publication of GB2122843BpublicationCriticalpatent/GB2122843B/en

StatusExpiredlegal-statusCriticalCurrent

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors

Landscapes

Engineering & Computer Science (AREA)
Computer Networks & Wireless Communication (AREA)
Signal Processing (AREA)
Telephonic Communication Services (AREA)

GB08209271A1982-03-301982-03-30Telephone interface unitExpiredGB2122843B (en)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
GB08209271AGB2122843B (en)	1982-03-30	1982-03-30	Telephone interface unit

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB08209271AGB2122843B (en)	1982-03-30	1982-03-30	Telephone interface unit

Publications (2)

Publication Number	Publication Date
GB2122843A GB2122843A (en)	1984-01-18
GB2122843Btrue GB2122843B (en)	1985-10-30

Family

ID=10529386

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB08209271AExpiredGB2122843B (en)	1982-03-30	1982-03-30	Telephone interface unit

Country Status (1)

Country	Link
GB (1)	GB2122843B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2303276B (en)*	1995-07-06	1997-09-03	Samsung Electronics Co Ltd	Office line incoming call service method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2736045A1 (en)*	1977-08-10	1979-02-22	Siemens Ag	METHOD OF ESTABLISHING A CONNECTION VIA TELEPHONE DIALING NETWORK
US4302629A (en)*	1979-03-14	1981-11-24	Teltone Corporation	Digital data transmission system
DE2931464C2 (en)*	1979-08-02	1981-10-08	Siemens AG, 1000 Berlin und 8000 München	Circuit arrangement for connecting a transmission device of a modem to a telephone line
IT1146176B (en)*	1980-02-07	1986-11-12	Italdata Spa	INTERFACE DEVICE FOR THE AUTOMATIC MANAGEMENT OF A SWITCHED TELEPHONE LINE

1982
- 1982-03-30GBGB08209271Apatent/GB2122843B/ennot_activeExpired

Also Published As

Publication number	Publication date
GB2122843A (en)	1984-01-18

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Legal Events

Date	Code	Title	Description
1988-11-23	PCNP	Patent ceased through non-payment of renewal fee

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