JP2002271852A - Portable telephone system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable telephone system that enhances the convenience of portable telephones. SOLUTION: The system or a network is provided with a call hold means that holds a call made a mobile phone 11 when the mobile phone 11 is in a reception disabled state, and when the portable telephone set 11 enters a receptible state, the call hold means informs the portable telephone set 11 about the call data (a telephone number of a caller phone or the like) held by the call hold means. The portable telephone set 11 displays the data on its screen or outputs the data in voice.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a portable telephone system.

[0002]

2. Description of the Related Art A portable telephone sometimes emits an electromagnetic wave in order to register its own position in a portable telephone network system, not only during a call but also during a non-call. Since this electromagnetic wave affects the operation of the cardiac pacemaker, it is required to turn off the power of the mobile phone at a station or the like. In addition to such a case, the power of the mobile phone is often turned off for various reasons. In the meantime, even if you make a call to the mobile phone, the caller will not receive the call because the caller is out of reach or the power is not turned on. ”, And the recipient does not receive any notification at that time or thereafter. Not even the fact that such a call was present is known.
As described in the above message, the same applies when the mobile phone is outside the service area.

[0003]

In recent years, mobile phones have become indispensable in sales activities. In business activities, it is important to always be ready to receive contact from customers, but in some cases, such as in the case described above, the power must be turned off. In some cases, it is necessary to temporarily go out of the service area of the mobile phone system. In the conventional system, it is not possible to receive a call transmitted to the mobile phone during that time, and it is not possible to recognize even such a call. This loses valuable sales opportunities.

[0004] Similarly, in private use, not in business activities, the inability to recognize a call to the mobile phone at all, greatly impairing the convenience of the mobile phone.

Conventionally, an answering machine service has been prepared for such a case, but in order to use this service, a message must be left on the calling side. Since this requires a caller to perform some operation, it has a strong sense of resistance and is not fully utilized.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and an object of the present invention is to provide a portable telephone system which provides a great convenience to a user both in business and in private. It is in.

[0007]

SUMMARY OF THE INVENTION A portable telephone system according to the present invention, which has been made to solve the above-mentioned problems, has a function of making a call to the portable telephone while the portable telephone is in a state where reception is impossible. Call holding means for holding a call, and when the mobile phone enters a receivable state, sending call data held by the call holding means to the mobile phone. Is what you do.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A description will be given with reference to FIGS. For example, when there is a call request from the fixed telephone 21 to the mobile telephone 11, the exchange of the fixed network 20 uses the mobile communication service identification number (for example, "090") to provide the mobile communication service network system 10 (hereinafter, mobile telephone). System). This connection is based on the Gateway Mobile-service Switching Cen.
ter: GMSC) 12. GMSC12
Is called mobile phone 1 via the information transfer network.
1 Home Memory Station (Home Memory Station: H
M) 13 to read the location information (location area number) of the mobile phone 11 and to read the mobile-service switching (Mobile-service Switching) controlling the area.
Center: MSC) Extend the line to 14. If the MSC 14 belongs to a different GMSC 12, the GMSC 12
Extend the line via. The MSC 14 sends a broadcast channel (Broadcast Common Control Channel) from all base stations (BSs) 15 belonging to the location area.
l: BCCH) to send a paging signal.

At this time, if the mobile phone 11 is in a communicable state, the mobile phone 11 transmits a communication channel establishment request (Traffic Channel: TCH establishment request) to the BS 15 on a common control channel (Common Control Channel: CCCH). This causes the BS 15 to allocate a free channel and start communication (the above is based on the “Mobile Communication Encyclopedia” issued by Maruzen Co., Ltd.).

However, when the power of the mobile phone 11 is turned off or when the mobile phone 11 is out of the service area 16 and there is no response to the general call signal within a predetermined time, the GMSC 12 conventionally issues the above message. It was only returned to the calling telephone 21. On the other hand, in the present invention, such a message is returned to the calling telephone 21 (this requirement is not essential in the present invention), and the telephone number of the calling telephone 21 is held in the mobile telephone system 10 side. I do. This holding means is desirably placed in the home memory station 13, but may be located elsewhere. In addition, in addition to the conventional message "call is not possible", a message such as "I will inform you that you have made a call when you can make a call" to the calling telephone 21. You may send it.

When the power of the portable telephone 11 is turned on from OFF, the portable telephone 11 is connected to the common control channel (CCC).
H) is transmitted to the BS 15 side. Also, when the mobile phone 11 enters the service area 16 from outside the service area 16, the mobile phone 11 can detect that from the antenna reception level. At this point, a similar signal is transmitted to the BS 15. B receiving these signals
S15 sends it to MSC 14, which sends HM
13 to check whether the data held by the mobile phone 11 exists. If no data exists, do nothing. If the held data exists, the data (the telephone number of the calling telephone 21) is read out and sent to the mobile telephone 11. The mobile phone 11 displays this on a screen or outputs it by voice. At this time, it is desirable to display the time of each call. FIG. 2 shows an example of this screen display. At this time, if the calling telephone 21 has selected non-notification of the telephone number of the own device, a display of "non-notification" is performed to indicate that a call has been made from somewhere. Even this alone, the holder of the mobile phone 11
In many cases, the origin of the call can be known. If the number of the calling telephone is recorded in the mobile phone 11, the name of the calling party may be displayed instead of the telephone number.

The owner of the portable telephone 11 can return a call to the caller (callback) based on this display. In the mobile phone 11, as shown in FIG. 2, a cursor that can be moved between the stored data displays is placed, and if a predetermined button operation (for example, an off-hook button operation) is performed on a certain stored data display, a call is immediately made. It is convenient to do backing.

The above is from the fixed telephone 21 to the mobile telephone 11
Although an example of connection to the mobile phone 11 has been described, the same can be applied when a call is made from the mobile phone 11 to another mobile phone 11.

On the other hand, when it is not necessary for the caller to make a callback after the call is recovered, a predetermined button (for example, a clear button) is operated to obtain data indicating that the callback is unnecessary. (This data is displayed on the screen of the receiving mobile phone) or allow the receiving mobile phone to select not to display the held data.

A similar service may be provided when the mobile phone 11 is busy, in addition to the case where the power is off and the service area is out of the service area.

[0016]

In the portable telephone system according to the present invention, the fact that a call is made while the power of the portable telephone is turned off or while the portable telephone is out of the service area is recognized by the portable telephone. Notify the owner when it becomes available. If the calling phone allows,
Since the telephone number is displayed or output, the holder of the mobile phone can immediately call the caller and listen to the business. For this reason, especially for salespersons, it is possible to minimize the loss of valuable business opportunities. Further, even if the calling telephone selects non-notification, if it is known that there is any call to itself, an action corresponding to the call can be taken.

Whether such a service is charged or free is completely unrelated to the basic concept of the present invention.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a system according to the present invention.

FIG. 2 is a diagram showing a screen display example of a mobile phone by the system according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Mobile telephone system 11 ... Mobile telephone 12 ... Gateway mobile exchange (GMSC) 13 ... Home memory station (HM) 14 ... Mobile exchange (MSC) 15 ... Base station (BS) 16 ... Service area 20 ... Fixed telephone network 21 … Landline telephone

Claims (1)

[Claims] 1. A portable telephone, comprising: a call holding means for holding a call made to the mobile phone while the mobile phone is in a state where reception is not possible; In this case, the data of the call held by the call holding means is sent to the mobile phone.