GB0024922D0 - Digital key telephone system and extension terminal device thereof - Google Patents

Digital key telephone system and extension terminal device thereof

Info

Publication number
GB0024922D0
GB0024922D0 GBGB0024922.7A GB0024922A GB0024922D0 GB 0024922 D0 GB0024922 D0 GB 0024922D0 GB 0024922 A GB0024922 A GB 0024922A GB 0024922 D0 GB0024922 D0 GB 0024922D0
Authority
GB
United Kingdom
Prior art keywords
terminal device
telephone system
key telephone
digital key
extension terminal
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.)
Granted
Application number
GBGB0024922.7A
Other versions
GB2352120B (en
GB2352120A (en
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
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 Toshiba Corp filed Critical Toshiba Corp
Priority claimed from GB9817681A external-priority patent/GB2325375B/en
Publication of GB0024922D0 publication Critical patent/GB0024922D0/en
Publication of GB2352120A publication Critical patent/GB2352120A/en
Application granted granted Critical
Publication of GB2352120B publication Critical patent/GB2352120B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • H04M3/42127—Systems providing several special services or facilities from groups H04M3/42008 - H04M3/58
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • 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
    • H04M3/42195—Arrangements for calling back a calling subscriber
    • 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
    • H04M3/42314—Systems providing special services or facilities to subscribers in private branch exchanges
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    • 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
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    • H04M—TELEPHONIC COMMUNICATION
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    • H04M3/4283—Call holding circuits
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    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/58—Arrangements for transferring received calls from one subscriber to another; Arrangements affording interim conversations between either the calling or the called party and a third party
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    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems
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Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Telephonic Communication Services (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
GB0024922A 1996-02-13 1997-02-13 Digital key telephone system and extension terminal device thereof Expired - Fee Related GB2352120B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2565896 1996-02-13
GB9817681A GB2325375B (en) 1996-02-13 1997-02-13 Digital button telephone system and extension terminal for the same

Publications (3)

Publication Number Publication Date
GB0024922D0 true GB0024922D0 (en) 2000-11-22
GB2352120A GB2352120A (en) 2001-01-17
GB2352120B GB2352120B (en) 2001-02-28

Family

ID=26314209

Family Applications (10)

Application Number Title Priority Date Filing Date
GB0024922A Expired - Fee Related GB2352120B (en) 1996-02-13 1997-02-13 Digital key telephone system and extension terminal device thereof
GB0024912A Expired - Fee Related GB2352118B (en) 1996-02-13 1997-02-13 Digital key telephone system and extension terminal device thereof
GB0024925A Expired - Fee Related GB2352121B (en) 1996-02-13 1997-02-13 Digital key telephone system and extension terminal device thereof
GB0024910A Expired - Fee Related GB2352117B (en) 1996-02-13 1997-02-13 Digital key telephone system and extension terminal device thereof
GB0024948A Expired - Fee Related GB2352123B (en) 1996-02-13 1997-02-13 Digital key telephone system and extension terminal device thereof
GB0024929A Expired - Fee Related GB2352122B (en) 1996-02-13 1997-02-13 Digital key telephone system and extension terminal device thereof
GB0024907A Expired - Fee Related GB2352115B (en) 1996-02-13 1997-02-13 Digital key telephone system and extension terminal device thereof
GB0024905A Expired - Fee Related GB2352114B (en) 1996-02-13 1997-02-13 Digital key telephone system and extension terminal device thereof
GB0024917A Expired - Fee Related GB2352119B (en) 1996-02-13 1997-02-13 Digital key telephone system and extension terminal device thereof
GB0024908A Expired - Fee Related GB2352116B (en) 1996-02-13 1997-02-13 Digital key telephone system and extension terminal device thereof

Family Applications After (9)

Application Number Title Priority Date Filing Date
GB0024912A Expired - Fee Related GB2352118B (en) 1996-02-13 1997-02-13 Digital key telephone system and extension terminal device thereof
GB0024925A Expired - Fee Related GB2352121B (en) 1996-02-13 1997-02-13 Digital key telephone system and extension terminal device thereof
GB0024910A Expired - Fee Related GB2352117B (en) 1996-02-13 1997-02-13 Digital key telephone system and extension terminal device thereof
GB0024948A Expired - Fee Related GB2352123B (en) 1996-02-13 1997-02-13 Digital key telephone system and extension terminal device thereof
GB0024929A Expired - Fee Related GB2352122B (en) 1996-02-13 1997-02-13 Digital key telephone system and extension terminal device thereof
GB0024907A Expired - Fee Related GB2352115B (en) 1996-02-13 1997-02-13 Digital key telephone system and extension terminal device thereof
GB0024905A Expired - Fee Related GB2352114B (en) 1996-02-13 1997-02-13 Digital key telephone system and extension terminal device thereof
GB0024917A Expired - Fee Related GB2352119B (en) 1996-02-13 1997-02-13 Digital key telephone system and extension terminal device thereof
GB0024908A Expired - Fee Related GB2352116B (en) 1996-02-13 1997-02-13 Digital key telephone system and extension terminal device thereof

Country Status (1)

Country Link
GB (10) GB2352120B (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0195635B1 (en) * 1985-03-20 1993-05-26 Nec Corporation Key telephone system
US4803718A (en) * 1987-03-06 1989-02-07 Tree Technologies Corporation Hold detecting and control circuit for a key telephone system
ATE103453T1 (en) * 1988-07-26 1994-04-15 Siemens Ag METHOD FOR IMPLEMENTING A FEATURE-RELATED CONTROL PROCEDURE IN A COMPUTER-CONTROLLED COMMUNICATION SYSTEM, ESPECIALLY A KEY-COMMUNICATION SYSTEM, WITH THE POSSIBILITY OF THE SO-CALLED ''CALL WAITING''.
ATE123614T1 (en) * 1988-08-18 1995-06-15 Siemens Ag METHOD FOR CARRYING OUT A CONTROL PROCEDURE IN CONNECTION WITH ACHIEVEMENT OF A HOLDING STATE OF A LINE IN A COMPUTER-CONTROLLED COMMUNICATION SYSTEM, IN PARTICULAR A KEY COMMUNICATION SYSTEM.

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GB2352123B (en) 2001-02-28
GB2352117A (en) 2001-01-17
GB2352116A (en) 2001-01-17
GB2352115B (en) 2001-02-28
GB2352121A (en) 2001-01-17
GB2352118A (en) 2001-01-17
GB0024925D0 (en) 2000-11-29
GB2352121B (en) 2001-02-28
GB0024910D0 (en) 2000-11-22
GB2352119A (en) 2001-01-17
GB0024917D0 (en) 2000-11-22
GB2352119B (en) 2001-02-28
GB2352123A (en) 2001-01-17
GB2352115A (en) 2001-01-17
GB0024907D0 (en) 2000-11-22
GB2352116B (en) 2001-02-28
GB0024908D0 (en) 2000-11-22
GB2352118B (en) 2001-02-28
GB2352117B (en) 2001-02-28
GB2352120B (en) 2001-02-28
GB0024912D0 (en) 2000-11-22
GB0024905D0 (en) 2000-11-22
GB0024948D0 (en) 2000-11-29
GB2352114B (en) 2001-02-28
GB2352122A (en) 2001-01-17
GB2352122B (en) 2001-02-28
GB2352120A (en) 2001-01-17
GB0024929D0 (en) 2000-11-29
GB2352114A (en) 2001-01-17

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