JPS5630352A - Subscriber's terminal equipment - Google Patents

Subscriber's terminal equipment

Info

Publication number
JPS5630352A
JPS5630352A JP10620679A JP10620679A JPS5630352A JP S5630352 A JPS5630352 A JP S5630352A JP 10620679 A JP10620679 A JP 10620679A JP 10620679 A JP10620679 A JP 10620679A JP S5630352 A JPS5630352 A JP S5630352A
Authority
JP
Japan
Prior art keywords
subscriber
relay
hook
realy
called
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.)
Granted
Application number
JP10620679A
Other languages
Japanese (ja)
Other versions
JPS6346625B2 (en
Inventor
Osamu Miura
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP10620679A priority Critical patent/JPS5630352A/en
Publication of JPS5630352A publication Critical patent/JPS5630352A/en
Publication of JPS6346625B2 publication Critical patent/JPS6346625B2/ja
Granted 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
    • H04M1/80—Telephone line holding circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)

Abstract

PURPOSE:To make it possible for both called and calling subscribers to release a channel by taking the initiative through a switching unit, by providing subscriber's terminals with a function of preventing a subscriber from performing error hook operation in its circuit. CONSTITUTION:As the subscriber's-side method of a catchphone set, it is made possible for a called subscriber to connect with a new calling subscriber through momentary on-hook operation in order to answer to incoming from the calling subscriber while the called subscriber is engaged. After the operation of realy T1, the on-hook state of the handset is detected as an on-hook state by making use of the slow release time of realy T1, holding relay F off. For this purpose, the slow release time of this relay T1 should be longer than the total time of the continuance of the on-hook state of the subscriber using the new service and the release time of relay T0. In on-hook operation after the talk, relay T0 operates and realy T1 is released, so that the state before a ring-back tone is sent out from the switching unit will be set.
JP10620679A 1979-08-21 1979-08-21 Subscriber's terminal equipment Granted JPS5630352A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10620679A JPS5630352A (en) 1979-08-21 1979-08-21 Subscriber's terminal equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10620679A JPS5630352A (en) 1979-08-21 1979-08-21 Subscriber's terminal equipment

Publications (2)

Publication Number Publication Date
JPS5630352A true JPS5630352A (en) 1981-03-26
JPS6346625B2 JPS6346625B2 (en) 1988-09-16

Family

ID=14427677

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10620679A Granted JPS5630352A (en) 1979-08-21 1979-08-21 Subscriber's terminal equipment

Country Status (1)

Country Link
JP (1) JPS5630352A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63299552A (en) * 1987-05-29 1988-12-07 Fujitsu Ten Ltd Origination control system for automobile telephone
JPS63299553A (en) * 1987-05-29 1988-12-07 Fujitsu Ten Ltd Off-hook call control system for automobile telephone

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63299552A (en) * 1987-05-29 1988-12-07 Fujitsu Ten Ltd Origination control system for automobile telephone
JPS63299553A (en) * 1987-05-29 1988-12-07 Fujitsu Ten Ltd Off-hook call control system for automobile telephone

Also Published As

Publication number Publication date
JPS6346625B2 (en) 1988-09-16

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