GB2237702B - Improvements in or relating to a private automatic branch exchange (PABX) telephone system - Google Patents

Improvements in or relating to a private automatic branch exchange (PABX) telephone system

Info

Publication number
GB2237702B
GB2237702B GB9020040A GB9020040A GB2237702B GB 2237702 B GB2237702 B GB 2237702B GB 9020040 A GB9020040 A GB 9020040A GB 9020040 A GB9020040 A GB 9020040A GB 2237702 B GB2237702 B GB 2237702B
Authority
GB
United Kingdom
Prior art keywords
pabx
relating
telephone system
branch exchange
automatic branch
Prior art date
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 - Fee Related
Application number
GB9020040A
Other versions
GB9020040D0 (en
GB2237702A (en
Inventor
Stephen Augustine Mcmahon
Declan Gibbons
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.)
ORANSAY Ltd
Original Assignee
ORANSAY 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.)
Filing date
Publication date
Application filed by ORANSAY Ltd filed Critical ORANSAY Ltd
Publication of GB9020040D0 publication Critical patent/GB9020040D0/en
Publication of GB2237702A publication Critical patent/GB2237702A/en
Application granted granted Critical
Publication of GB2237702B publication Critical patent/GB2237702B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/58—Arrangements providing connection between main exchange and sub-exchange or satellite
    • H04Q3/62—Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to private branch exchanges
    • H04Q3/625—Arrangements in the private branch exchange

Landscapes

  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
GB9020040A 1989-09-18 1990-09-13 Improvements in or relating to a private automatic branch exchange (PABX) telephone system Expired - Fee Related GB2237702B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IE297089A IE62326B1 (en) 1989-09-18 1989-09-18 Improvements in or relating to a private automatic branch exchange (pabx) telephone system

Publications (3)

Publication Number Publication Date
GB9020040D0 GB9020040D0 (en) 1990-10-24
GB2237702A GB2237702A (en) 1991-05-08
GB2237702B true GB2237702B (en) 1994-02-23

Family

ID=11037260

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9020040A Expired - Fee Related GB2237702B (en) 1989-09-18 1990-09-13 Improvements in or relating to a private automatic branch exchange (PABX) telephone system

Country Status (3)

Country Link
BE (1) BE1001879A7 (en)
GB (1) GB2237702B (en)
IE (1) IE62326B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19844672B4 (en) * 1998-09-29 2006-03-02 Siemens Ag Program-controlled communication system for switching connected analogue and digital communication terminals

Also Published As

Publication number Publication date
GB9020040D0 (en) 1990-10-24
IE892970A1 (en) 1991-03-27
BE1001879A7 (en) 1990-04-03
IE62326B1 (en) 1995-01-25
GB2237702A (en) 1991-05-08

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Legal Events

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

Effective date: 19940913