JPS5220712A - Call waiting system - Google Patents

Call waiting system

Info

Publication number
JPS5220712A
JPS5220712A JP9727775A JP9727775A JPS5220712A JP S5220712 A JPS5220712 A JP S5220712A JP 9727775 A JP9727775 A JP 9727775A JP 9727775 A JP9727775 A JP 9727775A JP S5220712 A JPS5220712 A JP S5220712A
Authority
JP
Japan
Prior art keywords
call waiting
waiting system
camp
informing
connection
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
JP9727775A
Other languages
Japanese (ja)
Other versions
JPS5712348B2 (en
Inventor
Kuniaki Itabashi
Shinichi Tsuda
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.)
Meisei Electric Co Ltd
Original Assignee
Meisei 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 Meisei Electric Co Ltd filed Critical Meisei Electric Co Ltd
Priority to JP9727775A priority Critical patent/JPS5220712A/en
Publication of JPS5220712A publication Critical patent/JPS5220712A/en
Publication of JPS5712348B2 publication Critical patent/JPS5712348B2/ja
Granted legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M3/00Automatic or semi-automatic exchanges
    • H04M3/42Systems providing special services or facilities to subscribers
    • H04M3/48Arrangements for recalling a calling subscriber when the wanted subscriber ceases to be busy

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)

Abstract

PURPOSE:Camp-on the incoming call to the busy extension and informing the relative line of the camp-on connection.
JP9727775A 1975-08-11 1975-08-11 Call waiting system Granted JPS5220712A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9727775A JPS5220712A (en) 1975-08-11 1975-08-11 Call waiting system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9727775A JPS5220712A (en) 1975-08-11 1975-08-11 Call waiting system

Publications (2)

Publication Number Publication Date
JPS5220712A true JPS5220712A (en) 1977-02-16
JPS5712348B2 JPS5712348B2 (en) 1982-03-10

Family

ID=14188016

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9727775A Granted JPS5220712A (en) 1975-08-11 1975-08-11 Call waiting system

Country Status (1)

Country Link
JP (1) JPS5220712A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4445212A (en) * 1981-10-29 1984-04-24 Gte Automatic Electric Labs Inc. Arrangement for multiple custom calling
US4445211A (en) * 1981-10-29 1984-04-24 Gte Automatic Electric Labs Inc. Arrangement for multiple custom calling
US4446553A (en) * 1981-10-29 1984-05-01 Gte Automatic Electric Labs Inc. Arrangement for multiple custom calling
US4446554A (en) * 1981-10-29 1984-05-01 Gte Automatic Electric Labs Inc. Arrangement for multiple custom calling

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS506281A (en) * 1973-05-18 1975-01-22

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS506281A (en) * 1973-05-18 1975-01-22

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4445212A (en) * 1981-10-29 1984-04-24 Gte Automatic Electric Labs Inc. Arrangement for multiple custom calling
US4445211A (en) * 1981-10-29 1984-04-24 Gte Automatic Electric Labs Inc. Arrangement for multiple custom calling
US4446553A (en) * 1981-10-29 1984-05-01 Gte Automatic Electric Labs Inc. Arrangement for multiple custom calling
US4446554A (en) * 1981-10-29 1984-05-01 Gte Automatic Electric Labs Inc. Arrangement for multiple custom calling

Also Published As

Publication number Publication date
JPS5712348B2 (en) 1982-03-10

Similar Documents

Publication Publication Date Title
JPS5220712A (en) Call waiting system
CA962388A (en) System for disabling incoming telephone calls
AU459087B2 (en) Supervisory lamp system for telephone conference connection and call transfer devices
JPS53100704A (en) Waiting-time connection system
JPS51148306A (en) System to notify cancel of all trunk lines busy
JPS52136511A (en) Order waiting automatic camp-on connection system
JPS526404A (en) Calling system of the button telephone set
JPS52122010A (en) Reverting call incoming identification
JPS51112108A (en) Adaptive echo suppressing system
JPS5215210A (en) Night call service system
CA811778A (en) Telephone line concentrator priority call system
JPS52119005A (en) Switching system having capability of switching connection during call ing
CA590545A (en) Telephone call intercepting system
JPS51113513A (en) Specific telephone service system
CA601825A (en) Telephone calling line identification system
CA641558A (en) Telephone signaling system
CA605335A (en) Telephone answering system
CA594960A (en) "wake up" or "morning call" system for automatically signaling private branch exchange extension stations
JPS51136210A (en) Trunk controlling for relay block connection
JPS5238801A (en) Automatic call connection device
JPS5379414A (en) Non-delay connection system
JPS52122011A (en) Malicious calling record
CA681299A (en) Delayed call telephone system
CA857402A (en) Telephone call handling system
CA618168A (en) Automatic telephone answering and message-recording system