GB253578A - Improvements in or relating to telephone systems - Google Patents

Improvements in or relating to telephone systems

Info

Publication number
GB253578A
GB253578A GB688725A GB688725A GB253578A GB 253578 A GB253578 A GB 253578A GB 688725 A GB688725 A GB 688725A GB 688725 A GB688725 A GB 688725A GB 253578 A GB253578 A GB 253578A
Authority
GB
United Kingdom
Prior art keywords
relay
cord
relays
cords
group
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
Application number
GB688725A
Other languages
English (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.)
Individual
Original Assignee
Individual
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
Priority to BE332308D priority Critical patent/BE332308A/xx
Application filed by Individual filed Critical Individual
Priority to GB688725A priority patent/GB253578A/en
Priority to FR613559D priority patent/FR613559A/fr
Publication of GB253578A publication Critical patent/GB253578A/en
Expired 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
    • H04M3/50—Centralised arrangements for answering calls; Centralised arrangements for recording messages for absent or busy subscribers ; Centralised arrangements for recording messages
    • H04M3/51—Centralised call answering arrangements requiring operator intervention, e.g. call or contact centers for telemarketing
    • H04M3/523—Centralised call answering arrangements requiring operator intervention, e.g. call or contact centers for telemarketing with call distribution or queueing

Landscapes

  • Business, Economics & Management (AREA)
  • Marketing (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
GB688725A 1925-03-13 1925-03-13 Improvements in or relating to telephone systems Expired GB253578A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE332308D BE332308A (US07534539-20090519-C00280.png) 1925-03-13
GB688725A GB253578A (en) 1925-03-13 1925-03-13 Improvements in or relating to telephone systems
FR613559D FR613559A (fr) 1925-03-13 1926-02-18 Perfectionnements pour installations téléphoniques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB688725A GB253578A (en) 1925-03-13 1925-03-13 Improvements in or relating to telephone systems

Publications (1)

Publication Number Publication Date
GB253578A true GB253578A (en) 1926-06-14

Family

ID=9822595

Family Applications (1)

Application Number Title Priority Date Filing Date
GB688725A Expired GB253578A (en) 1925-03-13 1925-03-13 Improvements in or relating to telephone systems

Country Status (3)

Country Link
BE (1) BE332308A (US07534539-20090519-C00280.png)
FR (1) FR613559A (US07534539-20090519-C00280.png)
GB (1) GB253578A (US07534539-20090519-C00280.png)

Also Published As

Publication number Publication date
BE332308A (US07534539-20090519-C00280.png)
FR613559A (fr) 1926-11-24

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