JP3289757B2 - Cordless telephone - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a PHP (Personal Handy)
Phone) method. In particular, it relates to a call transfer registration method for registering call transfer.

[0002]

2. Description of the Related Art An example of a call transfer registration system in a conventional PHP system will be described with reference to FIG. FIG. 3 is an overall configuration diagram of the PHP system. The PHP system uses a communication network 11, a wireless base station 1 used by an unspecified number of mobile terminals 14 for communication.
2. A base unit 13 of a cordless telephone (hereinafter abbreviated as base unit 13) and a mobile terminal 14. A wireless area corresponding to the wireless base station 12 is a base station area 15, and a wireless area corresponding to the base unit 13 is cordless. It is assumed that the telephone is in the wireless area 16. The mobile terminal 14 is registered in advance as a slave unit of the base unit 13, and can communicate via the base unit 13 in the cordless telephone wireless area 16, and receives a telephone number of the mobile terminal 14. The communication network 11 is provided with an incoming call transfer function for transferring the received communication to the base unit 13.

When the mobile terminal 14 moves to the wireless area 16 of the cordless telephone, the mobile terminal 14 can operate as a slave unit of the cordless telephone. 13 is not connected. When the user wants to transfer the incoming call to the mobile terminal 14 to the base unit 13 and perform communication via the base unit 13, the user can manually transfer the communication by using a predetermined call transfer destination registration procedure. Therefore, it is necessary to register that the call to the mobile terminal 14 is to be transferred to the base unit 13.

A mobile terminal 14 existing in a base station area 15
Enters the wireless area 16 of the cordless telephone,
When the mobile terminal 14 can receive the radio wave transmitted by the mobile terminal 14, the mobile terminal 14 automatically or by the manual operation of the holder,
It recognizes that it has entered the cordless telephone wireless area 16. Next, the mobile terminal 14 notifies the base unit 13 that the mobile terminal 14 is ready for reception. By this operation, the mobile terminal 1
Reference numeral 4 is recognized by the base unit 13 as a cordless telephone sub-unit.

Next, the configuration of a conventional mobile terminal 14 is shown in FIG.
This will be described with reference to FIG. FIG. 6 is a block diagram of the mobile terminal 14. A wireless area information receiving circuit 22 for receiving wireless area information from the wireless base station 12 or the base unit 13; a wireless area information receiving circuit 22 which manages information on a wireless area that is currently present; Wireless area information analysis circuit 24 for analyzing wireless area information
And a location notification circuit 23 for notifying the radio base station 12 or the base unit 13 of the location.

Next, the operation of the conventional mobile terminal 14 will be described with reference to FIG.
This will be described with reference to FIG. FIG. 7 is a flowchart showing the operation of the mobile terminal 14 of the conventional example. The mobile terminal 14 can be automatically or automatically operated by the holder to operate the base station 1 of the cordless telephone.
3 (a1, a2), and analyzes the content of the received radio wave (a3). If the source of the radio wave is the base station 13 of the cordless telephone, the base station 13 of the cordless telephone is (A)
4) Thereafter, the mobile terminal 14 operates as a child device of the parent device 13 (a5).

Next, the configuration of the conventional master unit 13 will be described with reference to FIG. FIG. 8 is a block diagram of a parent device 13 of a conventional example. A wireless area information transmitting circuit 43 for constantly transmitting a radio wave including information of its own area; a local area notification processing circuit 44 for receiving a local area notification from the mobile terminal 14 operating as a cordless phone handset; And a base phone circuit 45 for performing operations.

Next, the operation of the conventional master unit 13 will be described with reference to FIG. FIG. 9 is a flowchart showing the operation of the master unit 13. The base unit 13 always transmits radio waves including its own area information, and upon receiving the in-zone notification from the mobile terminal 14 (b1), the mobile terminal 14 is registered as a slave unit of the cordless telephone. If there is (b2),
In the future, the processing shifts to a processing operation in which the mobile terminal 14 exists as a slave unit of the cordless telephone (b3).

Next, the configuration of the communication network 11 will be described with reference to FIG. FIG. 10 is a block diagram of a communication network.
The case where the communication network 11 connecting the wireless base station 12 and the base unit 13 is the same will be described as an example. FIG. 10 is a block diagram of the communication network 11. The communication network 11 is a wireless base station 12
Control circuit 61 for setting a line to the master unit 13
And a transfer control circuit 62 for instructing the line control circuit 61 to perform an incoming call transfer operation. The transfer control circuit 62 holds the transfer source number, transfer destination number, and transfer condition information necessary for the call transfer operation.

Next, the operation of the communication network 11 will be described with reference to FIG. FIG. 11 is a flowchart showing the operation of the communication network 11. When there is a call transfer request from the base unit 13 (c
1) The line control circuit 61 transfers the request to the transfer control circuit 62. The transfer control circuit 62 performs a call transfer registration operation in accordance with the request (c2), and thereafter performs an operation of transferring communication coming to the mobile terminal 14 to the base unit 13.

[0011]

According to the prior art, when the owner of the mobile terminal enters the wireless area corresponding to the master unit, the owner of the mobile terminal judges the intrusion into the wireless area, and performs manual operation. It is necessary to perform the registration procedure in.

If the owner of the mobile terminal forgets this registration,
A notification that this mobile terminal is not within the communicable area is transmitted from the communication network to the caller who has made a call to the mobile terminal. In this case, the caller determines that the mobile terminal is out of the service area of the radio base station, and abandons contact with the mobile terminal owner. However, at this time, the mobile terminal actually exists at the owner's company or home as a cordless handset of the cordless telephone. A caller who cannot know this fact may give up contact with the mobile terminal owner until the mobile terminal returns to the service area of the radio base station.

The present invention has been made in such a background. When a mobile terminal enters a wireless area corresponding to a base unit, the base unit automatically performs call transfer registration with respect to a communication network. It is an object of the present invention to provide a communication system and a cordless telephone that can perform the communication.

[0014]

In order to solve this problem, according to the present invention, when a mobile terminal enters a predetermined cordless telephone radio area, the mobile terminal operates as a base unit or a child unit of the cordless telephone. It is characterized in that the terminal automatically performs call transfer destination registration for the communication network.

That is, according to a first aspect of the present invention, a radio base station, a base station, and a mobile terminal connectable to both the radio base station and the base station are connected to one communication network. The communication network is a communication system including means for registering a destination of the mobile terminal.

Here, a feature of the present invention is that the cordless telephone transmits a call addressed to the mobile terminal to the communication network when the mobile terminal is located within the communication range of the master unit. Is provided with a means for transmitting a call transfer destination registration request to be transferred to the connected line.

The transmitting means includes means for setting a communication path between the master unit and the registering means by transmitting a preset dial signal to the subscriber line, and Means for transmitting the call transfer destination registration request via a communication path.

[0018] A second aspect of the present invention is a cordless telephone which can be used as a portable radio telephone by a slave unit.

Here, the present invention is characterized in that means for detecting that the slave unit has entered the communication range of the master unit, and that the mobile radio is transmitted to the communication network in accordance with the detection output of this unit. Means for automatically transmitting a request to transfer an incoming call to a subscriber telephone set.

The transmitting means sets a communication path between the master unit and the transmission destination of the request by transmitting a preset dial signal to the subscriber line, and is set by the means. It is desirable to have a means for automatically transmitting the request through the communication path.

The means for automatically transmitting the information may be provided in the master unit, or may be provided in the slave unit.

[0022]

When the mobile terminal recognizes that it has entered the wireless area corresponding to the cordless telephone, the mobile terminal operating as a master unit or a slave unit automatically performs a call transfer registration operation with respect to the communication network. Call transfer registration can be performed without bothering the owner of the mobile terminal. Therefore, when the mobile terminal enters the wireless area corresponding to the cordless telephone, it is possible to automatically connect the call to the place where the owner of the mobile terminal exists.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of a first embodiment of the present invention will be described with reference to FIG. FIG. 1 is a block diagram of the first embodiment of the present invention. Refer to FIG. 3 for the overall configuration of the first embodiment of the present invention.

The present invention is a cordless telephone which allows the mobile terminal 14 as a slave unit to be used as a mobile radio telephone.

Here, the feature of the present invention is that the base unit 13 includes a wireless area information transmitting circuit 43 as a means for detecting that the mobile terminal 14 as a slave unit has entered the communication range, and a base station 13. Notification processing circuit 44 and transfer destination registration as means for automatically transmitting a request to transfer an incoming call to the mobile radio telephone to the communication network 11 in response to the detection output of the in-range notification processing circuit 44 And a circuit 46.

The destination registering circuit 46 is a dial signal transmitting circuit as a means for setting a communication path between the base unit 13 and the destination of the request by transmitting a dial signal set in advance to the subscriber line. And a registration control circuit 4 for automatically transmitting the request through the communication path set by the dial signal transmission circuit 47.
8 is provided.

That is, the base unit 13 always receives a radio area information transmission circuit 43 for transmitting radio waves including information of its own radio area, and an in-zone notification from the mobile terminal 14 operating as a slave unit of the cordless telephone. Current position notification processing circuit 4
4 and a transfer destination registration circuit 46 for registering a call transfer destination to the communication network 11.

Next, the operation of the first embodiment of the present invention will be described with reference to FIG. FIG. 2 is a flowchart showing the operation of the master unit 13 according to the first embodiment of the present invention. The base unit 13 is always transmitting radio waves including its own wireless area information, and upon receiving the in-zone notification from the mobile terminal 14 (b1), the mobile terminal 14 is registered as a slave unit of the cordless telephone. If (b2), the mobile terminal 14 shifts to a processing operation in which the mobile terminal 14 is present as a cordless handset of the cordless telephone (b).
3). The operation up to this operation is the operation already described in the conventional example as the parent machine. In the present invention, the base unit 13 further stores the telephone number of the mobile terminal 14 and sends a request to the communication network 11 to transfer the communication associated with the telephone number to its own telephone number ( b4).

As described above, in the first embodiment of the present invention, the fact that the communication with the mobile terminal 14 as the connection destination is to be transferred to the base unit 13 is automatically registered in the communication network 11. By this operation, when the mobile terminal 14 has moved to the cordless telephone wireless area 16, communication specifying the mobile terminal 14 as a connection destination is connected to the base unit 13,
Further, it is also possible to connect to the mobile terminal 14 which operates as a slave of the cordless telephone via the master 13.

Next, a second embodiment of the present invention will be described with reference to FIGS.
This will be described with reference to FIG. FIG. 4 is a block diagram of the in-zone notification circuit 23 of the mobile terminal 14 according to the second embodiment of the present invention. For the block configuration of the mobile terminal 14, see FIG. FIG. 5 is a flowchart showing the operation of the second embodiment of the present invention.
The second embodiment of the present invention is an example in which a call transfer destination registration function is provided on the mobile terminal 14 side, which is a slave unit of a cordless telephone.
As shown in FIG. 4, means for setting a communication path between the base unit 13 and a destination in the communication network 11 by sending a dial signal set in advance to the subscriber line to the location notification circuit 23. Dial signal transmission circuit 27 as
A registration control circuit 28 is provided as means for automatically transmitting the request through the communication path set by the dial signal transmission circuit 27.

The operation of the second embodiment of the present invention will be described with reference to FIG. The mobile terminal 14 searches for a radio wave transmitted by the base unit 13 (a1, a2), analyzes the content of the received radio wave (a3), and if the transmission source of the radio wave is the base unit 13, the mobile terminal 14 The mobile terminal 14 then notifies that it is present (a4), and thereafter the mobile terminal 14 operates as a slave unit of the master unit 13 (a5). After operating as a slave unit, it immediately transmits a call transfer destination registration request to the communication network 11 automatically via the master unit 13 and the subscriber line (a7).

[0032]

As described above, according to the present invention,
When the mobile terminal enters the wireless area corresponding to the cordless telephone, the cordless telephone can automatically perform call transfer registration with respect to the communication network.

[0033] Thereby, the call transfer registration is automatically performed, so that the mobile terminal owner can save the trouble of performing the call transfer registration and can also prevent the user from forgetting the registration due to carelessness. Therefore, user convenience is improved.

[Brief description of the drawings]

FIG. 1 is a block diagram of a device according to a first embodiment of the present invention.

FIG. 2 is a flowchart showing the operation of the master unit according to the first embodiment of the present invention.

FIG. 3 is an overall configuration diagram of a PHP system.

FIG. 4 is a block diagram of a presence notification circuit of a mobile terminal according to a second embodiment of the present invention.

FIG. 5 is a flowchart showing the operation of the second embodiment of the present invention.

FIG. 6 is a block diagram of a mobile terminal.

FIG. 7 is a flowchart showing the operation of a conventional mobile terminal.

FIG. 8 is a block diagram of a conventional master unit.

FIG. 9 is a flowchart showing the operation of the parent device of the conventional example.

FIG. 10 is a block diagram of a communication network.

FIG. 11 is a flowchart showing the operation of the communication network.

[Explanation of symbols]

 REFERENCE SIGNS LIST 11 communication network 12 wireless base station 13 cordless telephone base unit 14 mobile terminal 15 base station area 16 cordless telephone wireless area 21, 42 antenna 22 wireless area information receiving circuit 23 area notification circuit 24 wireless area information analyzing circuit 27, 47 dial Signal transmission circuit 28, 48 Registration control circuit 29 Location notification control circuit 43 Wireless area information transmission circuit 44 Location notification processing circuit 45 Base phone circuit 46 Transfer destination registration circuit 61 Line control circuit 62 Transfer control circuit

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Junji Maeda 1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation (72) Inventor Takeharu Tsuchiya 1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation (56) References JP-A-4-315326 (JP, A) JP-A-7-264653 (JP, A) JP-A-3-59788 (JP, U) (JP, A) (58) Field surveyed (Int. Cl. ⁷ , DB name) H04Q 7/38

Claims (1)

(57) [Claims] (1)The handset can be used as a mobile radio subscriber telephone
In a cordless telephone that can The child device enters the communication range of the parent device of the cordless telephone.
Means for detecting that
Forwards incoming calls to the mobile radio telephone to the communication network
Means for automatically sending a request to The transmitting means is provided in the master unit and is connected to the subscriber line.
By sending a preset dial signal
Means for setting a communication path with the destination of the request
Including A cordless telephone characterized in that: