GB2192116B - Telephone apparatus - Google Patents

Telephone apparatus

Info

Publication number
GB2192116B
GB2192116B GB8714742A GB8714742A GB2192116B GB 2192116 B GB2192116 B GB 2192116B GB 8714742 A GB8714742 A GB 8714742A GB 8714742 A GB8714742 A GB 8714742A GB 2192116 B GB2192116 B GB 2192116B
Authority
GB
United Kingdom
Prior art keywords
telephone apparatus
telephone
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
GB8714742A
Other versions
GB2192116A (en
GB8714742D0 (en
Inventor
Stephen Mulcahy
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.)
GEC TELECOMMUNICATIONS Ltd
General Electric Co PLC
Original Assignee
GEC TELECOMMUNICATIONS Ltd
General Electric Co PLC
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 GEC TELECOMMUNICATIONS Ltd, General Electric Co PLC filed Critical GEC TELECOMMUNICATIONS Ltd
Publication of GB8714742D0 publication Critical patent/GB8714742D0/en
Publication of GB2192116A publication Critical patent/GB2192116A/en
Application granted granted Critical
Publication of GB2192116B publication Critical patent/GB2192116B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/253—Telephone sets using digital voice transmission

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
GB8714742A 1986-06-24 1987-06-24 Telephone apparatus Expired - Fee Related GB2192116B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB868615408A GB8615408D0 (en) 1986-06-24 1986-06-24 Telephone apparatus

Publications (3)

Publication Number Publication Date
GB8714742D0 GB8714742D0 (en) 1987-07-29
GB2192116A GB2192116A (en) 1987-12-31
GB2192116B true GB2192116B (en) 1990-07-11

Family

ID=10600013

Family Applications (2)

Application Number Title Priority Date Filing Date
GB868615408A Pending GB8615408D0 (en) 1986-06-24 1986-06-24 Telephone apparatus
GB8714742A Expired - Fee Related GB2192116B (en) 1986-06-24 1987-06-24 Telephone apparatus

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB868615408A Pending GB8615408D0 (en) 1986-06-24 1986-06-24 Telephone apparatus

Country Status (1)

Country Link
GB (2) GB8615408D0 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1547671A1 (en) * 1988-07-20 1991-09-07 Предприятие П/Я Р-6609 Digital commutating systems

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2175175A (en) * 1985-05-10 1986-11-19 Mitel Corp Digital loudspeaking telephone

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2175175A (en) * 1985-05-10 1986-11-19 Mitel Corp Digital loudspeaking telephone

Also Published As

Publication number Publication date
GB2192116A (en) 1987-12-31
GB8714742D0 (en) 1987-07-29
GB8615408D0 (en) 1986-07-30

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19970624