JPS57129546A - Telephone exchange system - Google Patents

Telephone exchange system

Info

Publication number
JPS57129546A
JPS57129546A JP56015498A JP1549881A JPS57129546A JP S57129546 A JPS57129546 A JP S57129546A JP 56015498 A JP56015498 A JP 56015498A JP 1549881 A JP1549881 A JP 1549881A JP S57129546 A JPS57129546 A JP S57129546A
Authority
JP
Japan
Prior art keywords
telephone set
rtel
tel
radio
telephone exchange
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
JP56015498A
Other languages
Japanese (ja)
Inventor
Masayuki Sugiyama
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 JP56015498A priority Critical patent/JPS57129546A/en
Publication of JPS57129546A publication Critical patent/JPS57129546A/en
Pending 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
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/725—Cordless telephones
    • H04M1/72502—Cordless telephones with one base station connected to a single line

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

PURPOSE:To realize an outgoing/incoming connection for the telephone exchange through a radio telephone set like an ordinary telephone set, by using a portable radio telephone set for a terminal telephone set. CONSTITUTION:When a subscriber dials a portable radio telephone set RTEL, the call is received at a radio transmitting/receiving circuit TRX added to an ordinary telephone set TEL through a radio circuit to be transmitted to a telephone exchange EX via the TEL. On the other hand, the ringing tone is received at both the TEL and RTEL in the incoming mode, and a connection is secured to the EX via the TRX and TE by an answer from the RTEL.
JP56015498A 1981-02-04 1981-02-04 Telephone exchange system Pending JPS57129546A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56015498A JPS57129546A (en) 1981-02-04 1981-02-04 Telephone exchange system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56015498A JPS57129546A (en) 1981-02-04 1981-02-04 Telephone exchange system

Publications (1)

Publication Number Publication Date
JPS57129546A true JPS57129546A (en) 1982-08-11

Family

ID=11890466

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56015498A Pending JPS57129546A (en) 1981-02-04 1981-02-04 Telephone exchange system

Country Status (1)

Country Link
JP (1) JPS57129546A (en)

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