SE7808777L - Forfarande for ringstromsmatning i centralstyrda telekommunikationsanleggningar, i synnerhet telefonformedlingsanleggningar - Google Patents

Forfarande for ringstromsmatning i centralstyrda telekommunikationsanleggningar, i synnerhet telefonformedlingsanleggningar

Info

Publication number
SE7808777L
SE7808777L SE7808777A SE7808777A SE7808777L SE 7808777 L SE7808777 L SE 7808777L SE 7808777 A SE7808777 A SE 7808777A SE 7808777 A SE7808777 A SE 7808777A SE 7808777 L SE7808777 L SE 7808777L
Authority
SE
Sweden
Prior art keywords
procedure
systems
telephone communication
centrally controlled
particular telephone
Prior art date
Application number
SE7808777A
Other languages
English (en)
Inventor
W Oberhauser
K Renz
R Spath
N Springer
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of SE7808777L publication Critical patent/SE7808777L/sv

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Structure Of Telephone Exchanges (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
SE7808777A 1977-08-19 1978-08-18 Forfarande for ringstromsmatning i centralstyrda telekommunikationsanleggningar, i synnerhet telefonformedlingsanleggningar SE7808777L (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2737543A DE2737543C3 (de) 1977-08-19 1977-08-19 Verfahren zur Rufstromversorgung in Fernmelde-, insbesondere Fernsprechvermittlungs anlagen

Publications (1)

Publication Number Publication Date
SE7808777L true SE7808777L (sv) 1979-02-20

Family

ID=6016855

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7808777A SE7808777L (sv) 1977-08-19 1978-08-18 Forfarande for ringstromsmatning i centralstyrda telekommunikationsanleggningar, i synnerhet telefonformedlingsanleggningar

Country Status (7)

Country Link
CH (1) CH637256A5 (sv)
DE (1) DE2737543C3 (sv)
FR (1) FR2400808A1 (sv)
GB (1) GB1560204A (sv)
IT (1) IT1098032B (sv)
NL (1) NL7807112A (sv)
SE (1) SE7808777L (sv)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1068748C (zh) * 1996-02-07 2001-07-18 汇众实业总公司 程控交换机铃流电源
CN100546327C (zh) * 2005-12-21 2009-09-30 华为技术有限公司 一种在通讯设备中的铃流控制方法及装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3601551A (en) * 1968-07-31 1971-08-24 Gte Automatic Electric Lab Inc Tone generator control circuit
US3581020A (en) * 1969-08-22 1971-05-25 Itt Ringing tone distribution circuits

Also Published As

Publication number Publication date
IT1098032B (it) 1985-08-31
DE2737543C3 (de) 1980-05-29
CH637256A5 (en) 1983-07-15
NL7807112A (nl) 1979-02-21
DE2737543B2 (de) 1979-09-13
GB1560204A (en) 1980-01-30
FR2400808B1 (sv) 1982-02-12
FR2400808A1 (fr) 1979-03-16
IT7826709A0 (it) 1978-08-11
DE2737543A1 (de) 1979-02-22

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