IT7828249A0 - SWITCHING SYSTEMS CIRCUIT ARRANGEMENT FOR TELEPHONE, WITH SWITCHING SYSTEMS DEVICES FOR SWITCHING TO WHICH THEY ARE TELECOMMUNICATIONS, ESPECIALLY FOR ASSOCIATED EXPLORATION DEVICES IN COMMON. - Google Patents

SWITCHING SYSTEMS CIRCUIT ARRANGEMENT FOR TELEPHONE, WITH SWITCHING SYSTEMS DEVICES FOR SWITCHING TO WHICH THEY ARE TELECOMMUNICATIONS, ESPECIALLY FOR ASSOCIATED EXPLORATION DEVICES IN COMMON.

Info

Publication number
IT7828249A0
IT7828249A0 IT7828249A IT2824978A IT7828249A0 IT 7828249 A0 IT7828249 A0 IT 7828249A0 IT 7828249 A IT7828249 A IT 7828249A IT 2824978 A IT2824978 A IT 2824978A IT 7828249 A0 IT7828249 A0 IT 7828249A0
Authority
IT
Italy
Prior art keywords
switching
devices
switching systems
telecommunications
telephone
Prior art date
Application number
IT7828249A
Other languages
Italian (it)
Other versions
IT1099616B (en
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
Priority claimed from DE19772744118 external-priority patent/DE2744118A1/en
Priority claimed from DE19772748795 external-priority patent/DE2748795A1/en
Application filed by Siemens Ag filed Critical Siemens Ag
Publication of IT7828249A0 publication Critical patent/IT7828249A0/en
Application granted granted Critical
Publication of IT1099616B publication Critical patent/IT1099616B/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/72—Finding out and indicating number of calling subscriber

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Telephonic Communication Services (AREA)
IT28249/78A 1977-09-30 1978-09-29 CIRCUITIVE PROVISION FOR TELECOMMUNICATIONS SWITCHING SYSTEMS, ESPECIALLY FOR TELEPHONE SWITCHING SYSTEMS, WITH SWITCHING DEVICES TO WHICH COMMON EXPLORATION DEVICES ARE ASSOCIATED IT1099616B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19772744118 DE2744118A1 (en) 1977-09-30 1977-09-30 Telephone exchange with single interrogate unit for several lines - uses interrogate pulse trains of at least two different frequencies to increase unit's capacity
DE19772748795 DE2748795A1 (en) 1977-10-31 1977-10-31 Switching characteristics monitor for telecommunications exchange - repeatedly interrogates switching devices and successively compares results

Publications (2)

Publication Number Publication Date
IT7828249A0 true IT7828249A0 (en) 1978-09-29
IT1099616B IT1099616B (en) 1985-09-18

Family

ID=25772826

Family Applications (1)

Application Number Title Priority Date Filing Date
IT28249/78A IT1099616B (en) 1977-09-30 1978-09-29 CIRCUITIVE PROVISION FOR TELECOMMUNICATIONS SWITCHING SYSTEMS, ESPECIALLY FOR TELEPHONE SWITCHING SYSTEMS, WITH SWITCHING DEVICES TO WHICH COMMON EXPLORATION DEVICES ARE ASSOCIATED

Country Status (6)

Country Link
AT (1) ATA698478A (en)
CH (1) CH631304A5 (en)
FR (1) FR2404980A1 (en)
GB (1) GB2006573B (en)
IT (1) IT1099616B (en)
LU (1) LU80182A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HU193325B (en) * 1985-03-29 1987-09-28 Bhg Hiradastech Vallalat Scanning and preprocessing circuit for centrally controlled apparatuses, preferably telephone exchanges
EP0213374B1 (en) * 1985-08-14 1990-01-31 Siemens Aktiengesellschaft Circuit arrangement for telecommunication exchanges, particularly telephone exchanges, comprising scanning joints which are cyclically controlled by information interrogation devices
GB2339119B (en) * 1998-06-30 2003-05-21 Mitel Corp Method and apparatus for event detection in a switching system

Also Published As

Publication number Publication date
IT1099616B (en) 1985-09-18
LU80182A1 (en) 1979-02-12
CH631304A5 (en) 1982-07-30
GB2006573B (en) 1982-01-13
ATA698478A (en) 1982-09-15
GB2006573A (en) 1979-05-02
FR2404980A1 (en) 1979-04-27

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