JPS5685949A - Carrier-frequency terminal equipment - Google Patents

Carrier-frequency terminal equipment

Info

Publication number
JPS5685949A
JPS5685949A JP16316379A JP16316379A JPS5685949A JP S5685949 A JPS5685949 A JP S5685949A JP 16316379 A JP16316379 A JP 16316379A JP 16316379 A JP16316379 A JP 16316379A JP S5685949 A JPS5685949 A JP S5685949A
Authority
JP
Japan
Prior art keywords
cut
carrier
terminal equipment
sigr
frequency terminal
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
JP16316379A
Other languages
Japanese (ja)
Other versions
JPH0140538B2 (en
Inventor
Osamu Uchiyama
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 JP16316379A priority Critical patent/JPS5685949A/en
Publication of JPS5685949A publication Critical patent/JPS5685949A/en
Publication of JPH0140538B2 publication Critical patent/JPH0140538B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Monitoring And Testing Of Exchanges (AREA)
  • Time-Division Multiplex Systems (AREA)

Abstract

PURPOSE: To prevent the sound of a bell of each telephone set when the radio circuit has been cut off, by stopping a sending of the SIGR signal by the alarm information of cut-off of the radio circuit, from the radio apparatus, in the carrier- frequency terminal equipment of tone-on idle, which is connected to the multiplex radio apparatus.
CONSTITUTION: The carrier-frequency terminal equipment 17 is connected to the base band signal line 4 from the multiplex radio apparatus 5 and the receiving alarm information line 10, the base band signal is divided into each telephone channel 8 by the carrier-frequency terminal equipment 3, and the alarm information is amplified 11 and operates the relay 12. Since the device 11 is tone-on idle, in case the radio circuit is cut off, the SIGR signal becomes a service state even if the device is in a service state. In this case, the receiving alarm information of cut-off of the radio circuit is received, the relay 12 is operated, the SIGR signal line is opened by the contacts rl1∼rln, and the SIGR signal is made a waiting state. In this way, when the radio circuit is cut off, it is prevented that bells of each telephone set ring all together.
COPYRIGHT: (C)1981,JPO&Japio
JP16316379A 1979-12-14 1979-12-14 Carrier-frequency terminal equipment Granted JPS5685949A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16316379A JPS5685949A (en) 1979-12-14 1979-12-14 Carrier-frequency terminal equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16316379A JPS5685949A (en) 1979-12-14 1979-12-14 Carrier-frequency terminal equipment

Publications (2)

Publication Number Publication Date
JPS5685949A true JPS5685949A (en) 1981-07-13
JPH0140538B2 JPH0140538B2 (en) 1989-08-29

Family

ID=15768424

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16316379A Granted JPS5685949A (en) 1979-12-14 1979-12-14 Carrier-frequency terminal equipment

Country Status (1)

Country Link
JP (1) JPS5685949A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0475455U (en) * 1990-11-13 1992-07-01

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5115313A (en) * 1974-07-29 1976-02-06 Fujitsu Ltd Pcm kaisenno shogaijiseigyohoshiki

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5115313A (en) * 1974-07-29 1976-02-06 Fujitsu Ltd Pcm kaisenno shogaijiseigyohoshiki

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0475455U (en) * 1990-11-13 1992-07-01

Also Published As

Publication number Publication date
JPH0140538B2 (en) 1989-08-29

Similar Documents

Publication Publication Date Title
MX9701086A (en) Improved communications marketing system.
CA2025742A1 (en) Facsimile apparatus
JPS57107664A (en) Electronic button telephone set
JPS5469905A (en) Answering system for call signal of automatic answering telephone set
JPS5685949A (en) Carrier-frequency terminal equipment
JPS5758456A (en) Facsimile response device
JPS5563157A (en) Automatic answering telephone system
JPS54139319A (en) Key telephone system
JPS5591252A (en) Automatic answering telephone set
EP0973345A3 (en) Apparatus and method for transmitting and registering calls for assistance
JPS5610766A (en) Talking monitor system
JPS55133166A (en) Automatic answering telephone set
JPS56112128A (en) Call request method
JPS5671344A (en) Car telephone with speaker
WO1999033287A3 (en) Method and system for transmitting information to a cellular telephone
JPS56147548A (en) Test method for digital subscriber line carrier system
JPS6130822A (en) Automatic interruption communication equipment
GB1178694A (en) Improvements in or relating to a Carrier-Telephony System
JPS56144649A (en) Ring-off control system of multiple address communication master-station device
JPS57178464A (en) Calling system for branch telephone circuit
JPS57206141A (en) Switching system of channel in busy
JPS56123139A (en) Cordless telephone set
JPS54111800A (en) Alarm system utilizing wire television
KR960043589A (en) Paging System to Receive Calls from Cordless Phones
JPS6016738A (en) Radio communication system