JPS62294365A - Informing system for outgoing subscriber number of car telephone exchange system - Google Patents

Abstract

PURPOSE:To attain a call to one's own, and the confirmation of the subscriber number of an opposite even when a car telephone station becomes impossible to receive the call temporarily, by storing an outgoing subscriber number at an address corresponding to a subscriber data. CONSTITUTION:In case of generating a fault such as the shut-off of a power source, etc., in a car telephone station 1 receiving the call, or being impossible to receive the call due to movement outside of the serving area of a radio base station 2, by deciding a signal as a call signal to the car telephone station 1 by a car telephone exchange system 3, the signal is outputted to the radio base station 2, and simultaneously, the outgoing subscriber number is stored at the address A of the subscriber data corresponding to every callee car telephone subscriber number by driving a storage device 4, and also, the fact that the outgoing subscriber number is stored at an address B is displayed. By turning on the power source of the car telephone station 1, or placing the call with a specific dial numbor after returning to the serving area, an inquiry number, that is a call code, and the specific dial number are sent to the car telephone exchange system 3 through the radio base station 2.

Description

DETAILED DESCRIPTION OF THE INVENTION 3. Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a mobile telephone exchange system, and particularly to a system for notifying a mobile telephone subscriber of a calling subscriber number.

(Prior art) Conventionally, this type of calling subscriber number notification system calls the called car phone subscriber and sends the calling subscriber number to the communication channel when a call is received to the car phone subscriber. and displayed on the display of the called mobile phone.

(Problems to be Solved by the Invention) In the conventional calling subscriber number notification method described above, the calling subscriber number is sent to the communication channel at the same time as the called car phone is ringed. If a telephone subscriber moves outside the service area, not only will he or she not be able to receive the paging signal, but will also be unable to receive the paging signal even if he or she returns to the wireless base station's service area and is able to receive the signal. I was unable to confirm that I received it.

The present invention has been made in view of the above problems, and is a car telephone exchange that is capable of confirming calls to itself and the subscriber number of the other party, even if the car telephone office temporarily becomes unable to receive reception. The purpose is to provide a calling subscriber number notification method for the system.

(Means for Solving the Problems) In order to solve the above-mentioned problems and achieve the above objects, the calling subscriber number notification method provided by the present invention is such that a mobile telephone exchange can make a call to a mobile phone subscriber. If the mobile telephone switching system determines that there is a caller, the mobile phone switching system calls the called mobile phone subscriber via a corresponding wireless base station and notifies the called mobile phone subscriber of the calling subscriber number, the mobile phone switching system comprising: is provided with an inquiry signal sending means for sending an inquiry signal to inquire about the subscriber number of the caller who called the mobile phone subscriber, and transmits the subscriber number of the caller to the car phone subscriber to the called car telephone exchange. It is characterized by being provided with a storage device that stores the subscriber number of the car telephone in correspondence with the subscriber number, and a retrieval means that retrieves the subscriber number of the corresponding caller from the storage device and notifies the subscriber number of the corresponding caller when the inquiry signal is received. shall be.

(Example) FIG. 1 is a block diagram showing one embodiment of the present invention.

First, to explain the configuration, 1 is a car telephone station, which is equipped with a wireless transmitting and receiving device using a communication channel of a predetermined frequency.
Through the wireless base station 2, it is possible to talk to a general telephone or another mobile telephone station. Also, car telephone station 1
is equipped with an inquiry signal sending means, and even if it becomes temporarily unreceivable due to a power outage, etc., by sending an inquiry signal after recovery, it can check whether there is a call to itself and if there is a call. can check the subscriber number of the other party. The radio base station 2 receives a calling signal or an inquiry signal from a car telephone station l existing within its service area and transmits it to the car telephone exchange 3, and also transmits the signal from the car telephone exchange 3 to the car telephone exchange 3. Send to 1. The mobile telephone exchange 3 exchanges and connects communication channels between the general public telephone switching network 7 and the mobile telephone office 1. Reference numeral 4 denotes a storage device which stores the subscriber number of the caller to the mobile phone subscriber in correspondence with the subscriber number of the called mobile phone. Specifically, as shown in FIG. 2, the calling party's subscriber number is stored in the address person of the subscriber data 11 of the car phone, and the calling party's subscriber number has been stored in the address B. Display that it was done.

5 is a voice editing device which converts the calling party's subscriber number into voice. Reference numeral 6 denotes a voice transmission trunk, which operates based on a command from the car telephone exchange device 3, and is connected to the voice editing device 5.
The audio signal is transmitted to the wireless base station 2.

Next, the operation will be explained. First, the operation under normal conditions will be explained. When the car telephone exchange 3 receives a signal to call the car telephone station 1, it sends the call signal to the radio base station 2 via the common signal line.

Subsequently, the radio base station 2 sends out a paging signal to the common channel. The mobile telephone subscriber 1 designated by the calling signal returns a calling confirmation signal in response to the calling signal. The call confirmation signal passes through the wireless base station 2,
The mobile telephone exchange device 3 is notified. The mobile telephone exchange 3 selects an empty communication channel and sends a communication channel designation signal to the radio base station 2. The wireless base station 2 transmits a pre-monitoring signal to the designated communication channel, and also transmits a communication channel designation signal to the mobile telephone station 1 via the common channel. The called mobile phone station L transmits the call channel designation signal to the designated call channel Lm.
Then, the same pre-monitoring information as the received pre-monitoring information is sent back to the radio base station 2 via the communication channel. When the wireless base station 2 receives the pre-monitoring signal, it determines that the called mobile phone station l has moved to the designated communication channel. The radio base station 2 sends a known C'LI code, ie, the originating subscriber number, to the mobile telephone station 1;
Next, send out a 7-digit code. Car telephone station l corresponds to C
'When the LI code and calling subscriber number are received, the received calling subscriber number is displayed on the display device, and when the ring code is received, the built-in bell rings.

Next, an explanation will be given of the operation when the mobile phone station 1 that received the call has a failure such as a power cut, or has moved outside the service area of the wireless base station 2 and is unable to receive reception. When the mobile telephone exchange 3 determines that the calling signal is for the mobile telephone station 1 in this state, it outputs the signal to the wireless base station 2, and at the same time drives the storage device 4 to record the called signal as shown in FIG. The originating subscriber number is stored in the address A of the subscriber data corresponding to each car telephone subscriber number, and the fact that the originating subscriber number is stored in the address B is displayed. When the car telephone station 1 turns on the power or returns to the service area and makes a call using a specific dial number, an inquiry signal, that is, a calling code and a specific dial number, is sent to the car telephone exchange via the wireless base station 2. Send to 3. The mobile telephone exchange device 3 confirms that the call is made using a specific dial number, searches the subscriber data stored in the storage device 4, and reads out the calling subscriber number. The mobile telephone exchange IT 3 selects a free call channel,
A communication channel designation signal is sent to the radio base station 2. The radio base station 2 transmits the monitoring sound to the designated communication channel, and also transmits the received communication channel designation signal to the common channel. The mobile phone station 1 tunes the call channel designation signal to the designated call channel, and transmits the same monitoring sound as the received monitoring sound to the car telephone exchange 3 via the radio base station 2. When the mobile telephone exchange device 3 detects the monitoring sound, it sends the known CLI code and the calling subscriber number read from the storage device 4 to the communication channel. After receiving the C'LI code through the mobile telephone station 1-digit call channel, the received calling subscriber number can be displayed on the display.

Next, a case will be described in which the calling subscriber number is notified by voice. In the case of the above-mentioned display display, until the car telephone station 1-key call channel designation signal is tuned to the designated call channel and the same monitoring sound as the received monitoring sound is sent to the car telephone exchange 3 via the wireless base station 2. It is similar to After this, the monitoring sound is from the car telephone exchange 3V.
When C is sent, the calling subscriber number is sent to the audio editing device 5, and the audio sending trunk 6 is connected to the designated communication channel. The audio editing device 5 converts the received calling subscriber number into audio and sends it to the wireless base station 2 via the audio transmission trunk 6.
Send to. Since the wireless base station 2 transmits the calling subscriber number by voice via the communication channel, the car telephone station 1 can know the calling subscriber number by voice.

(Effects of the Invention) As explained above, the present invention includes a mobile phone exchange equipped with a storage device for storing a calling subscriber number, and a mobile telephone exchange that sends a call to an address corresponding to subscriber data provided for each mobile phone subscriber. By memorizing the subscriber number, even if the called mobile phone subscriber turns off the power of the mobile phone or moves out of the service area, when the mobile phone is turned on or returns to the outside of the service area. By making an inquiry using a predetermined specific dial number, it is possible to know specifically where the call came from and the calling subscriber number.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a diagram showing the structure of subscriber data stored in the storage device of FIG. 1. l...Car telephone station, 2...Wireless base station, 3...
Car telephone switching equipment, 4...Memory device [1"11.5.
...Audio edition'44 device, 6...Audio transmission trunk. Agent Patent Attorney Nobu Honjo Sukejou T Figure 2 37Fl-

Claims (1)

[Claims] When the mobile telephone exchange deciphers the calling signal and determines that the call is to a mobile phone subscriber, it calls the called mobile phone subscriber via the corresponding wireless base station and In a car telephone exchange system for notifying a calling subscriber number to a car phone subscriber, an inquiry signal sending means is provided for sending an inquiry signal to the car phone to inquire about the subscriber number of the caller who called the car phone, A storage device for storing a subscriber number of a caller to a car phone subscriber in a car telephone exchange in correspondence with a subscriber number of the called car phone; A calling subscriber number notification method for a mobile telephone exchange system, characterized in that a retrieval means is provided for retrieving a subscriber number from the storage device and notifying the subscriber number.