JPS60117894A - Private branch exchange - Google Patents

Private branch exchange

Info

Publication number
JPS60117894A
JPS60117894A JP22516683A JP22516683A JPS60117894A JP S60117894 A JPS60117894 A JP S60117894A JP 22516683 A JP22516683 A JP 22516683A JP 22516683 A JP22516683 A JP 22516683A JP S60117894 A JPS60117894 A JP S60117894A
Authority
JP
Japan
Prior art keywords
telephone set
extension
circuit
line
outside
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.)
Pending
Application number
JP22516683A
Inventor
Kunihiko Fujiwara
Takayuki Shima
Original Assignee
Seikosha:Kk
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 Seikosha:Kk filed Critical Seikosha:Kk
Priority to JP22516683A priority Critical patent/JPS60117894A/en
Publication of JPS60117894A publication Critical patent/JPS60117894A/en
Application status is Pending legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q3/00Selecting arrangements
    • H04Q3/58Arrangements providing connection between main exchange and sub-exchange or satellite
    • H04Q3/62Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to private branch exchanges

Abstract

PURPOSE:To connect an incoming call from a telephone set at the outside of a premisese to a desired extension telephone set even if the operator is absent by requesting the transmission of a desired extension number signal to a caller at incoming and connecting automatically an external line to the extension with the extension number signal from the telephone set at the outside of premises. CONSTITUTION:When the operator is absent and the mode is brought into the automatic state while a key 7 is depressed, a control circuit 26 changes over a switch 3 through a contact 7' so as to connect an external line 11 to a line 13. Moreover, a master telephone set 8 becomes one of extension telephone sets. When an incoming call from a telephone set 1 at the outside of premises exists in this state, a 16Hz reception circuit 22 responds to it, a dial request circuit 23 is activated, the voice stored in advance, e.g., ''please dial the extension number.'' is transmitted to the telephone set 1. When a caller dials the extension number in response to this request, a dial pulse wave signal is transmitted from the telephone set 1, it is discriminated by a discriminating circuit 25 via the external line 11, the switch 3, the line 13, the 16Hz reception circuit 22 and a wave shaping circuit 24, and the connecting circuit 6 is connected to the extension telephone set corresponding to the dial pulse number.
JP22516683A 1983-11-29 1983-11-29 Private branch exchange Pending JPS60117894A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22516683A JPS60117894A (en) 1983-11-29 1983-11-29 Private branch exchange

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22516683A JPS60117894A (en) 1983-11-29 1983-11-29 Private branch exchange

Publications (1)

Publication Number Publication Date
JPS60117894A true JPS60117894A (en) 1985-06-25

Family

ID=16824972

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22516683A Pending JPS60117894A (en) 1983-11-29 1983-11-29 Private branch exchange

Country Status (1)

Country Link
JP (1) JPS60117894A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989006076A1 (en) * 1987-12-16 1989-06-29 Dytel Corporation Automated access facilities for use with key telephone systems
US4922526A (en) * 1987-12-16 1990-05-01 Dytel Corporation Automated access facilities for use with key telephone systems
US4935958A (en) * 1986-09-22 1990-06-19 Dytel Corporation Busy/no-answer call completion equipment
US4975941A (en) * 1984-03-26 1990-12-04 Dytel Corporation Call processor for facilitating call completions

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6044140A (en) * 1984-03-26 2000-03-28 Aspect Communications Corp. Computer controlled call processor
US4975941A (en) * 1984-03-26 1990-12-04 Dytel Corporation Call processor for facilitating call completions
US5666401A (en) * 1984-03-26 1997-09-09 Syntellect Acquisition Corporation Automated attendant call processor
US4935958A (en) * 1986-09-22 1990-06-19 Dytel Corporation Busy/no-answer call completion equipment
US4850012A (en) * 1987-12-16 1989-07-18 Dytel Corporation Automated access facilities for use with key telephone systems
US4922526A (en) * 1987-12-16 1990-05-01 Dytel Corporation Automated access facilities for use with key telephone systems
WO1989006076A1 (en) * 1987-12-16 1989-06-29 Dytel Corporation Automated access facilities for use with key telephone systems

Similar Documents

Publication Publication Date Title
US4821312A (en) Voice/data switch
KR0135287B1 (en) Terminal switching control apparatus
GB2095512A (en) Home telephone exchange
EP0424508A1 (en) Dialing features for cellular telephone with standard telephone set
JPS60256236A (en) Cordless phone having absence response recording function
JPH0265450A (en) Line interface unit
GB1466162A (en) Telecommunications systems
JPS58170277A (en) Facsimile device
JPS5462711A (en) Processing system for answer of private branch exchange
JPS58107761A (en) Monitoring system for automatic answering device
JPS5925466A (en) Sound detection switching system
US5224146A (en) Radio telephone system for calling a party at predetermined invervals until a response is received
JPS5986357A (en) Automatic exchange telephone set
JPS57132464A (en) Telephone set with automatic dial function
CA2006140A1 (en) Communication device connected to telephone line together with telephone set
JPS56129469A (en) Transfer system of incoming call
JPH01114246A (en) Sound recording telephone device with remote controlled change-over switch
US4813067A (en) Apparatus for connecting selectively a telephone answering device or additional equipment, such as a facsimile machine, to telephone lines
US4103107A (en) Paging encoder system utilizing a telephone line link
JPS5639670A (en) Circuit switching unit
US4408102A (en) Two-wire exchange telephone system
US4060700A (en) Two-party telephone system
EP0018844A1 (en) Telephone systems
US3331924A (en) Telephone systems
JPS60244156A (en) Facsimile equipment with automatic answering function