JPH0121662B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a communal terminal that allows users to freely make and receive calls using mobile phones within any small area in which equipment has been installed in advance.

Conventionally, there is a car phone system that allows telephone calls from any location. This is a wide area telephone service whose basic service area is outdoors.
An advanced system that automatically determines the location of a mobile phone by sending and receiving radio waves to the base system, ensuring that it is always ready to receive calls, and automatically switching between sending and receiving calls even when the car phone changes zones. It is. Since the service area of this car phone system is macroscopic, many measures are required to provide detailed services in underground malls, offices, department stores, etc. when used as a mobile phone. Furthermore, assuming a huge number of subscribers, there is a drawback that the amount of processing such as detecting subscriber positions is enormous.

On the other hand, cordless phones are one type of short-range mobile phone, but this service is limited to a closed area exclusively for specific telephone subscribers, and cannot be expanded to a wider area because it is not intended for use in any location. It was possible.

Although the concept is different from that of a mobile phone, a public telephone is a telephone installed at any location in a telephone network for use by unspecified users. However, users only use it for outgoing calls when they have the intention to make calls.
It was impossible to receive calls to oneself from public telephones.

In order to eliminate such drawbacks, the present invention is provided in a telephone network, capable of multiple shared use, automatically forwarding incoming calls to telephone subscribers as needed, and using a small wireless line. It is characterized by a shared terminal that can communicate with a nearby mobile phone, and its purpose is to enable incoming calls over a wide area with a relatively simple configuration and operation.

The communal terminal according to the present invention will be made clear by explaining the telephone network in which the communal terminal according to the present invention is installed and its operation.

FIG. 1 shows a telephone network consisting of three exchanges, each of which has a function of automatically forwarding incoming calls to any terminal. The exchange 2 accommodates a subscriber telephone 4 and a community terminal 5, the exchange 3 accommodates a community terminal 6, and the exchange 1 accommodates a subscriber telephone 8 and a community terminal 7. The subscriber telephone 4 owns a mobile telephone 4', and can set up a wireless line between the mobile telephone 4' and a shared terminal 5, 6, or 7 as necessary, as will be explained below.

The communal terminal 6 is provided integrally with a public telephone 10, for example, as shown in FIG. If the owner of the mobile phone 4' needs telephone service near the communal terminal 6, use the insertion slot 12 of the communal terminal 6.
Insert the mobile phone 4' inside. By this insertion, the mobile phone 4' comes into electrical contact with the community terminal 6 through the connector, and by exchanging signals with each other, the incoming call to the subscriber phone 4 is transmitted to the community terminal 6.
It is possible to automatically transfer the call to the mobile phone 4' and receive the call to the mobile phone 4'. That is, when a transfer request operation is performed by bringing the mobile phone 4' into contact with the communal terminal 6, the mobile phone 4' receives an identification number indicating that it is the mobile phone of the subscriber phone 4 (subscriber number 4),
Information such as the request type (in this case, automatic transfer), interface conditions for setting up a wireless line, etc. is read from the storage section stored in advance and transferred to the communal terminal 6. Having received this, the communal terminal 6 sends a transfer service request signal to the telephone exchange 2 accommodating the subscriber telephone 4 via the exchange 3.

When the exchange 2 recognizes that the signal from the shared terminal 6 is a transfer service request signal, it transfers the incoming trunk 21 to which the line from the shared terminal 6 is connected to the outside via the call path switch 20, as shown in FIG. Connecting to the registration trunk 23, exchanging the subscriber number, the number of the joint terminal 6 corresponding to the transfer destination, and the identification code between the joint terminal 6 and the trunk 23,
The trunk 23 registers the automatic transfer of the incoming call to the subscriber telephone 4 to the shared terminal 6 in the automatic call transfer trunk 24 of the exchange 2, and sends a registration completion signal to the shared terminal 6. This automatic transfer registration is generally performed in substantially the same way as transfer registration.

After receiving the registration completion signal, the community terminal 6 sends the wireless line setting procedure to the mobile phone 4', that is, the radio frequency, identification code, secret decoding code, etc., and transmits the radio frequency used by the mobile phone 4', the secret decoding code, etc. The settings are completed and a message indicating that registration is complete is displayed. Subscribers who have confirmed this display will
is separated from the communal terminal 6 and enters a standby state within a predetermined surrounding area for the communal terminal 6.

Now assume that the owner of subscriber telephone 8 makes a call to subscriber telephone 4. The subscriber of the telephone 4 is in the vicinity of the communal terminal 6 and has a mobile telephone 4'. Subscriber telephone 4 from subscriber telephone 8
The exchange 2 that received the call recognizes that the call is to the subscriber telephone 4 via the automatic transfer trunk 24 as shown in FIG. is captured and connected to the community terminal 6 via the automatic transfer trunk 24 and the outgoing trunk 22 by the call path switch 20, and the incoming call to the subscriber telephone 4 is automatically transferred to the community terminal 6,
The identification code allows the communal terminal 6 to recognize that the call is transferred to the mobile phone 4'.

The communal terminal 6 calls the mobile phone 4' according to a predetermined procedure with the mobile phone 4', and sets up a call line. This allows the owner of the mobile phone 4' to receive a call from the phone 8.

As described above, the owner of the mobile phone 4' can receive a transfer to a shared terminal located at any location by following the same procedure. In addition to canceling the old registration request with a new registration request, if the incoming call transfer call is unanswered, the old registration request is canceled after a certain period of time has elapsed, thereby increasing the utilization efficiency of the communal terminal 6. Also, instead of inserting the mobile phone 4' into the communal terminal 6,
For example, by recording the identification number, request type, interface conditions, etc. on a magnetic card and inserting this card into the communal terminal 6, the communal terminal 6 reads this card and issues the transfer registration request.
In short, the shared terminal has a wireless transmitter/receiver for the mobile phone, and a means for receiving the identification number, request type, and interface conditions from the mobile phone or by reading a magnetic card, etc., to the exchange in which the mobile phone owner's subscriber phone is accommodated. , is equipped with a means to send the subscription number of the joint terminal, etc., and a means to set up a call line with the mobile phone, and in addition, if a transfer registration request is made using something such as a magnetic card, a means to read it and the wireless It is equipped with a line and means for displaying a secret code. Seeing this display, the owner of the mobile phone is set as the mobile phone.

Regarding a call from the mobile phone 4', if a wireless signal indicating that the line is idle is received from the community terminal 5, 6, or 7, the call can be made at any time using that community terminal. The mobile phone 4' can receive incoming calls using any of the shared terminals 5, 6, or 7 depending on the movement. By using multiple network lines, the shared terminal can respond to transfer requests from a larger number of mobile phones due to the line concentration effect.
Further, since processing is performed only on registration requests of mobile phones as necessary, the burden on network processing is not large.

As explained above, by installing the communal terminal according to the present invention in various locations, users can use it as their own telephone terminal to make and receive calls anywhere in the vicinity of the location. By sequentially installing communal terminals at stations, department stores, restaurants, companies, sidewalks, etc. according to the convenience of users, a more sophisticated telephone network can be constructed in place of conventional public telephones.

Mobile phones are expected to have a low wireless output in terms of battery capacity and miniaturization, and their mode of use is often indoors, where macro radio waves from wide-area systems such as car phones are difficult to reach. many. From this point of view, the method of sequentially expanding a small service area by using the communal terminal of the present invention is suitable.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an example of a telephone network configuration using a communal terminal according to the present invention, FIG. 2 is a conceptual diagram showing an example in which the communal terminal according to the present invention is integrated with a public telephone, and FIGS. FIG. 4 is a diagram showing the connections within the exchange during the call transfer registration operation and the automatic call transfer operation, respectively. 1, 2, 3: Telephone exchange, 4, 8: Subscriber telephone, 4': Mobile telephone attached to subscriber telephone terminal 4, 5, 6, 7: Community terminal, 10: Public telephone,
11: Community terminal, 12: Insertion slot, 13: Mobile phone.

Claims (1)

[Scope of Claims] 1. A shared terminal connected as one terminal to a telephone network having a function of automatically forwarding incoming calls to any predetermined terminal, which transmits and receives wireless calls to and from a mobile phone. In response to a transfer registration request for the mobile phone, the subscriber number of the owner of the mobile phone;
Means for transmitting a transfer registration request and a terminal number to an exchange accommodating a subscriber telephone with the subscriber number, and means for receiving a call transfer to the mobile phone and transmitting the shared terminal and the mobile phone between the mobile phone and the mobile phone. and means for configuring a wireless line to specify a shared terminal.