FR689300A - Improvements to telephone systems for long distance central offices - Google Patents

Improvements to telephone systems for long distance central offices

Info

Publication number
FR689300A
FR689300A FR689300DA FR689300A FR 689300 A FR689300 A FR 689300A FR 689300D A FR689300D A FR 689300DA FR 689300 A FR689300 A FR 689300A
Authority
FR
France
Prior art keywords
long distance
telephone systems
central offices
distance central
offices
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
Other languages
French (fr)
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.)
Thales SA
Original Assignee
Le Materiel Telephonique Thomson CSF
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 Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Application granted granted Critical
Publication of FR689300A publication Critical patent/FR689300A/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)
FR689300D 1929-01-05 1930-01-04 Improvements to telephone systems for long distance central offices Expired FR689300A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL689300X 1929-01-05

Publications (1)

Publication Number Publication Date
FR689300A true FR689300A (en) 1930-09-04

Family

ID=19805759

Family Applications (1)

Application Number Title Priority Date Filing Date
FR689300D Expired FR689300A (en) 1929-01-05 1930-01-04 Improvements to telephone systems for long distance central offices

Country Status (2)

Country Link
FR (1) FR689300A (en)
NL (1) NL28248C (en)

Also Published As

Publication number Publication date
NL28248C (en)

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