JPH02288537A - Portable automatic call telephone system - Google Patents

Abstract

PURPOSE:To attain direct talking with one dialing via a general telephone network by sending a caller telephone number to a portable radio telephone set via a radio call control station so as to allow the portable telephone set to dial the telephone number automatically. CONSTITUTION:A subscriber exchange 2 holds a line leading to a telephone set 1 and a telephone number of a portable radio telephone set 9 and a telephone number (caller ID) of the telephone set 1 are sent to a radio call control station 7 through a signal line 12, the radio call control station 7 utilizes the radio call system to call the portable radio telephone set 9 and to inform the caller ID. The portable radio telephone set 9 calls the caller ID automatically, a radio base station 8 calls the caller ID to the subscriber exchange 5 and the subscriber exchange 5 ensures the line up to the subscriber exchange 2. Thus, the direct communication between lots of unspecified parties and a party possessing the portable radio telephone set provided with a radio call reception function whose location is unclear is attained by one dialing via a general telephone network without intervention of the operator.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a mobile phone system using a radio paging service.

(Prior Art) Conventional mobile phone systems include those that are expanded versions of car phone systems and systems that incorporate cordless phones into public networks. An expanded car phone system allows communication while on the move, but requires equipment such as a mobile communication switch and home memory, and also requires
Advanced connection control functions such as location registration and channel switching during communication are required for incoming call connections. For this reason, the system cost increases and it is difficult to reduce the size, weight, and cost of mobile terminals.

Additionally, a system called ``Telepoint'' is being considered in the UK as a system for introducing cordless telephones into public networks. In this system, wireless base stations are installed in public places where people gather, such as stations, airports, and downtown areas.
This system allows calls to be made anywhere within a range of approximately 1,000 feet using a portable cordless telephone terminal via a base station. Each base station can handle approximately 40 terminals simultaneously. Since the base station is connected to the public network, users are connected to the public communication network through it. This system is much cheaper to use than a car phone system, and the terminals can be made smaller. However, this system has the drawback that it is only for outgoing calls and cannot receive calls. In addition, in order to make it possible to receive calls, advanced network functions are required to notify the communication network of location information, manage this location information on the communication network side, and search for location information and connect in response to call requests. We will not be able to provide the required, low-cost mobile phone service. Furthermore, in this case, there is also the inconvenience of having to notify the communication network of location information each time the user moves. Therefore, it may be possible to use a pager to receive calls. However, in the case of a wireless paging system (so-called pager system) having only a paging function, the called party only knows that there is a call, but cannot know the direct caller (caller). For this reason, the calling party first informs the intermediary specified by the called party of the existence of the matter, then this intermediary calls the called party by radio and informs him of the existence of the matter, and finally the called party This method requires a procedure in which the caller calls the direct caller, which has the disadvantage that the procedure is extremely complicated and time-consuming. In addition, even in the case of a wireless calling system that has a message function that can display the telephone number of the direct caller, the called person must have a means of dialing the caller's telephone number, which makes it difficult for the caller to call. had the disadvantage that it was not possible to make a call after making a single call. In addition, since the called party makes a new call when answering, if the caller's phone happens to be busy and the call line is closed when the caller makes a new call, both parties will not be able to set up a call line, and the call will be terminated. There was the inconvenience of not being able to do so.

Furthermore, even though the call was made for the convenience of the caller, there was also the inconvenience that the call fee was borne by the called party who responded to the call.

(Problems to be Solved by the Invention) The present invention is intended to solve the above-mentioned drawbacks, and one of its purposes is to provide a wireless call receiving function to an unspecified number of people whose whereabouts are unknown. To provide a mobile phone system that allows a person who owns a mobile radio phone equipped with a mobile phone to make a direct call by one dial operation via a general telephone network without involving an intermediary.

Another object of the present invention is that since a radio paging service is used to receive a call to a mobile radio telephone, the radio telephone does not require a call receiving function, and the telephone network does not require a mobile telephone location registration function. The objective is to provide an economical mobile phone system that does not require a lot of effort.

Another object of the present invention is to provide a mobile phone system that allows the calling party to bear the call charges when the called party answers the call.

Furthermore, another object of the present invention is to provide a mobile phone system in which a response method can be selected after receiving notification of the caller's telephone number.

(Means for Solving the Problems) The features of the present invention for achieving the above object are that a mobile phone equipped with a radio call reception function and a connection device connected to the phone are connected to a public communication network having a telephone exchange. In a communication system in which the caller calls the mobile phone, the telephone exchange or mobile phone center identifies that the caller has called the mobile phone, puts the line on hold, and transfers the caller's telephone number from the telephone exchange to the radio call control station. The radio paging control station sends the above telephone number to the mobile phone via the radio line,
The mobile phone automatically calls the phone number, and the telephone exchange recognizes that the mobile phone automatically calls the phone number, and connects this line to the line of the original caller who placed the call on hold. There is an automatic calling mobile phone system.

(Example) The present invention will be explained in detail below with reference to Examples.

FIG. 1 shows an embodiment of the automatic calling mobile phone system of the present invention. 1 is a telephone set, which is housed in the subscriber exchange 2; 8 is a radio base station for communicating with a mobile radio telephone 9 equipped with a radio call receiving function;
is housed in.

The base station 8 and radio device 9 can be imagined to be a cordless telephone system master station and telephone equipped with a radio call receiving function. 3
and 4 are relay exchanges, and these relay exchanges 3 and 4, telephone set 1, subscriber exchanges 2 and 5, and radio base station 8 are connected through communication lines 13a to 13e. Reference numeral 7 denotes a radio paging control station for making radio calls to the portable radio telephone 9 equipped with a radio paging receiving function. The portable radio telephone 9 only needs to have a calling function to the radio base station 8. In other words, it is sufficient to have the function of receiving a radio call signal from 7 and the function of transmitting a call signal to 8. However, between 8 and 8, a simple line control function may be necessary, similar to cordless. The radio call control station 7 and the subscriber exchange 2 are connected by a signal line 12. This is different from a telephone line. Reference numeral 10 indicates the range in which communication is possible between the radio base station 8 and the mobile radio telephone 9, and is usually an area with a radius of about 200 m centered on the radio base station 8. 11 indicates the range in which the radio paging control station 7 can call the mobile radio telephone 9;
The existing radio paging system is limited to a prefecture-based area, and it is thought that it can be expanded to cover the entire country in the future.

Next, the line connection procedure in the present invention will be explained. First, the caller dials the number of the portable radio telephone 9 from the telephone 1, for example 010-1234567. Since this telephone 9 is mobile, the caller usually does not know the location of this telephone. In subscriber exchange 2, this number (
In this example, it is identified that the call is to the mobile radio telephone 9 from the identification code (010), the line from the telephone 1 is put on hold, and the number of the mobile radio telephone 9 (so-called called ID ) and the telephone number (so-called caller ID) of the telephone set 1 are sent to the radio call control station 7. The radio paging control station 7 uses the radio paging system to call the portable radio telephone 9 and notifies the caller's telephone number (caller ID). Upon receiving this notification, the mobile radio telephone 9 automatically makes a call, and the destination is the caller ID.

Or, instead of automatic calling, the caller ID is sent to the mobile wireless phone 9.
It is also possible to provide a display function so that the holder of the portable wireless telephone 9 can see the caller ID and process the call only if he or she wishes to respond. Since the telephone 9 can be called either voluntarily by its owner or in response to a wireless call as described above, it sends a code identifying both to the base station 8. This allows 8 to know that this call is a response to a wireless call. Therefore, the radio base station 8 calls the telephone number of the original caller (calling rD) to the subscriber exchange 5 with information indicating that no billing processing is required. The subscriber exchange 5 performs connection processing and establishes a line to the subscriber exchange 2 without performing billing processing.

Of course, in the case of a spontaneous call from the telephone 9, billing processing is performed in the same way as for a general cordless phone. The subscriber exchange 2 connects the line from the telephone 1 that has been put on hold to the line from the subscriber exchange 5. Here, the line on hold in the subscriber exchange 2 may be connected to a talkie.

If telephone 9 is powered off or out of service area and connection between 8 and 9 is impossible, exchange 2 may be provided with a timer to disconnect the line after a certain period of time. Through the above procedure, a telephone line between the telephone 1 and the portable radio telephone 9 is established, and the two can make a telephone conversation. In this case, even if the location of the called person is not known, as long as the called person is within the service area 11 of the radio paging control station, the call can be made, and the called person who is in possession of the mobile radio telephone 9 can reach the wireless base station. As long as you are within the service area of the station, the line will be automatically connected by the above procedure and you will be able to talk to each other. By increasing the number of wireless base stations 8 installed based on the above procedure, it is possible to realize a mobile phone system that allows telephone calls anytime, anywhere, and from anywhere. Furthermore, even if the number of installed radio base stations 8 is small, or even when the owner of the portable radio telephone 9 is in the middle of a call, the portable radio telephone 9 may have a radio call reception function independent of the telephone call function. Therefore, it can be equipped with various functions such as storing the telephone number of the caller or displaying the telephone number during a call.

In the case of a spontaneous call from the mobile radio telephone 9, the above code is used as information to indicate the spontaneous call, and the number of the owner of the mobile radio telephone 9 (in this example) is used to indicate the billing destination. , 010-1234567) and request connection processing to the subscriber exchange 5. The specific steps in this case are:
Although it is similar to the conventional credit calling service, the dialing operation can be stored in the portable radio telephone 9 (this can simplify the dialing operation).

Further, in the above example, the exchange 2 holds the line from the telephone 1 and connects the line from the subscriber exchange 5, but the wireless paging control station 7 can also do this, for example. In this case, not only the signal line 12 is connected between the exchange 2 and the control station 7 (it is also necessary to provide a communication line).

Further, in the above example, the mobile side is connected wirelessly to the wireless base station 8 such as a cordless telephone system using the mobile phone 9, but this may also be a wired connection. An example of this case is shown in FIG. Here, 20 is a communication terminal device connection terminal housed in the exchange 5, and 21 is a telephone equipped with a radio call reception function, which is normally connected to the nearest connection terminal 8. The connection procedure is the same as in the first embodiment. If there are many terminals 20 installed in the town, the owner of the portable device 21 can carry it and connect it to the nearest terminal 20.
By inserting it, it can be effectively provided with a movement function.

In the above description, it is assumed that the identification of the mobile phone and the holding of the line are performed by the telephone exchange, but these functions can also be performed at a separately provided mobile phone center.

(Effects of the Invention) According to the present invention, a large number of unspecified persons and persons whose whereabouts are unknown but who possess portable radio telephones equipped with a radio call receiving function can use the general telephone network without the intervention of an intermediary. You can make a direct call with a single dial operation. Therefore, as long as the holder of a portable radio telephone equipped with a radio call receiving function is within the service area, the caller can communicate efficiently without knowing the location of the other party. The owner of a portable radio telephone equipped with a receiving function can instantly know about urgent matters no matter where he is, so that he can take appropriate action. Also,
According to the present invention, in a mobile radio telephone equipped with a radio call reception function and a telephone network, a call function can be realized only by a call origination function without requiring a call reception function that requires location registration of the mobile radio telephone. In addition to being able to realize a small, lightweight, and low-cost mobile radio telephone,
An economical mobile phone system can be provided. Further, according to the present invention, the caller (original wave caller) can be made to bear the telephone charges when the called party answers the call. Further, according to the present invention, it is possible to select a response method after receiving notification of the calling party's telephone number, and the privacy of the called party can be protected.

Furthermore, when a mobile phone is connected by wire, telephone service can be provided with good quality.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram of a telephone system according to an embodiment of the present invention. FIG. 2 shows another embodiment of the invention. 1... Telephone 2.5... Subscriber exchange 3.
4...Relay exchange 7...Radio paging control station 8...Radio base station 9... Service area of mobile radio telephone radio base station with radio paging receiving function Service area signal line of radio paging control station ... Transmission path communication terminal device connection terminal Portable telephone equipped with wireless call reception function 10... 11... 12-- 13a-13e 20... 21...

Claims (1)

[Claims] In a communication system in which a mobile phone equipped with a radio call reception function and a connecting device connected to the phone are connected to a public communication network having a telephone exchange, The telephone number of the caller is transmitted from the telephone exchange to the radio call control station, and the radio call control station transmits the telephone number to the mobile phone. via a wireless line, the mobile phone automatically calls the phone number, and the telephone exchange recognizes that the mobile phone automatically calls the phone number, and connects the line to the phone number. An automatic calling mobile phone system characterized by connecting to the line of the primary caller who has been put on hold.