JP2002185606A - Extension telephone system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce labor for telephone switching by identifying a called party based on an incoming call to a main phone. SOLUTION: In this extension telephone system which is provided with a master device (11) connected to a network side by wire and slave devices (21, 22) connected to the master device by radio, the maser device stores a telephone number corresponding to the master device, and when the telephone number obtained by receiving a signal from a network side (41) at the time of incoming call is stored corresponding to the master device, not the slave devices but only the master device is called.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a parent-child telephone system such as a cordless telephone connected to a network having a function of notifying a telephone number of a caller to a called side. The present invention relates to a parent-child telephone system for controlling ringing.

[0002]

2. Description of the Related Art Recently, cordless telephones that transmit and receive voice between a base unit and a child unit wirelessly have become mainstream. According to such a cordless telephone, it is possible to make a call to the other party from either the master unit or the slave unit when making a call, and to respond to the caller from both the master unit and the slave unit when receiving a call. In addition, both the parent device and the child device are provided with a function for adjusting and disconnecting the volume of the ringing tone. If the ringing tone of all the devices can be generated, the ringing tone can be generated from both the parent device and the child device. If a ringing tone can be generated only for a predetermined parent device or a child device and a ringing tone of another device is cut off, a ringing tone can be generated only from the predetermined parent device or a child device.

[0003]

As described above, a cordless telephone can be used as if there is a telephone having a plurality of lines.
The master unit is used exclusively for Mr. A, the first slave unit is used exclusively for Mr. B, and the second slave unit is used exclusively for Mr. C.

[0004] However, even if the users of the base unit and the child unit are determined in this way, if a cordless telephone receives an incoming call, it is not known to whom the call came. There is a problem that must be taken over. or,
If a ring tone other than the predetermined slave unit or the base unit is cut off, the ring tone is not output from the other unit, and the meaning that there are a plurality of telephones in the base unit and the slave unit is diminished. There is a problem that the function of can not be fully exhibited. In view of the above, it is an object of the present invention to make it possible to identify who is calling by calling only the base unit, thereby reducing the trouble of handling the call.

[0005]

FIG. 1 is a diagram illustrating the principle of the present invention. Reference numeral 11 denotes a base unit of the cordless telephone, 21 denotes a first sub unit of the cordless telephone, 31 denotes a second sub unit, and 41 denotes a digital network, for example, an ISDN network. In the base unit 11,
11a is a control unit (CPU), 11b is a memory for storing a caller telephone number set corresponding to the slave unit and the master unit, 1
Reference numeral 1c denotes a timer, 11k denotes a ringing tone generator, and different tone colors are set for the master unit and the first and second slave units.

[0006]

The telephone number of the caller is registered in the memory 11b of the base unit 11 in advance so as to correspond to the base unit, and upon receiving an incoming call, the control unit 11a stores the telephone number of the caller notified from the digital network 41 in the base unit. The mobile phone identifies whether the mobile phone is associated with the mobile phone. If the mobile phone is associated with the mobile phone, the mobile phone notifies the parent machine of the incoming call and sounds a ringing tone of only the mobile phone. By doing so, the base unit user can identify whether the call has been received by himself or herself, can generate a ringing tone only for the base unit, and can improve the function of the cordless telephone.

Note that the telephone number of the caller is registered in correspondence with the slave unit, and upon receiving an incoming call, the control unit 11a identifies whether the telephone number of the caller notified from the digital network 41 is associated with the slave unit. If the mobile phone is associated with the mobile phone, the mobile phone notifies the mobile phone of an incoming call and sounds a ringing tone of only the mobile phone.

[0008]

EXAMPLES overall configuration diagram 2 is a block diagram of a cordless telephone according to the present invention, 1
0 is a cordless telephone as an ISDN terminal, 11 is a base unit of the cordless telephone, and 21 is a first cordless telephone.
The slave unit 31 is a second slave unit.

In the base unit 11, reference numeral 11a denotes a control unit (CPU) for controlling the entire cordless telephone, reference numeral 11b denotes a memory for storing a caller telephone number set in advance corresponding to each slave unit and base unit, and reference numeral 11c denotes a timer. , 11d is a handset equipped with a speaker and a microphone, 11e is a display unit for performing various displays for subscribers, 11f is an operation unit, which registers a ten-key for calling or data entry and a caller telephone number. It has various function keys for deletion.

Reference numeral 11g denotes a line control unit for controlling data transfer between the network terminating device and the master unit in the ISDN network, and 11h performs mutual conversion between audio signals (analog signals) and digital data and switches audio signal paths. A voice control unit 11i is a transmission / reception control unit that modulates voice and control data from the other party and transmits the data to the slave units 21 and 31 from the antenna 11j.
, And receives and demodulates the radio wave from the slave unit and sends it to the voice control unit 11h, or sends the control data
A ringing tone generator 11k to be transmitted to 1a has different tone colors set for the master unit and the first and second slave units. 11m is a volume switching unit, and 11n is a ringing speaker. The handset 11d is a voice control unit 1.
1h, and is connected to the line control unit 11g via the voice control unit 11h.
1g.

[0011] The storage contents Figure 3 of the memory is a storage description diagram of a memory 11b, a memory number-is provided, PTM caller telephone number storage area for the master unit, the CTM1 caller for the first subsidiary unit The telephone number storage area, CTM2, is a caller telephone number storage area for the second slave unit. Memory numbers 1 to 3 are allocated to the parent device storage area PTM, and a destination telephone number (caller telephone number) to be received by the parent device and a delayed ringing flag Fr to be described later are respectively stored. .

The first sub-unit storage area CTM1 is assigned a memory number ~, and a destination telephone number (caller telephone number) to be received by the first sub-unit and a delayed
The ringing flag Fr is stored.
By storing the caller's telephone number in the first slave unit's storage area CTM1, the caller number notified from the digital network when an incoming call is received can be stored in the first slave unit's storage area. If the numbers match, the first mobile phone receives an incoming call, and only the first mobile phone rings. When the delayed ringing flag Fr is "1", it is determined that there is no response for a predetermined time at the time of calling the first slave unit.
The parent device generates a ringing tone with the tone for the first child device.
When the delayed ringing flag is "0", the first slave unit continues to ring the sound until the other party disconnects or answers.

The second sub-unit storage area CTM2 is assigned a memory number ~, and a destination telephone number (caller telephone number) to be received by the second sub-unit and a delayed
The ringing flag Fr is stored.
By storing the caller telephone number in the second sub-unit storage area CTM2, the caller number notified from the digital network at the time of an incoming call is stored in the second sub-unit storage area. If the numbers match, the call is received by the second handset, and only the second handset rings. When the delayed ringing flag Fr is "1", it is determined that there is no response for a predetermined time at the time of calling the second slave unit.
The parent device generates a ringing tone with the tone for the second child device.
If the delayed ringing flag is "0", the second child unit continues to ring the sound until the other party disconnects or answers.

FIG. 4 is a block diagram of the slave unit. Reference numeral 21a denotes a control unit having a microcomputer configuration for controlling the entire slave unit, 21b denotes an operation unit provided with numeric keys and various function keys, 21c denotes a display unit,
1d is a ringing tone generating unit, 21e is a ringing tone volume adjusting unit, 21f is a ringing speaker, 21g is an antenna, 21h is a duplex, 21i is an RF unit (radio control unit) having a transmitting circuit and a receiving circuit, and 21j is A secret talk circuit, 21k is an emphasis circuit, 21m is an amplifier, 21n is a receiver (speaker), 21p is a transmitter (microphone), and 21q is MSK-modulated digital data for transmission and demodulates digital data from the master unit. This is a modulation and demodulation unit.

As shown in FIG. 5, in the ISDN exchange call control procedure , as shown in FIG. 5, (1) when the party inputs the telephone number of the other party and makes a call,
a, the SET UP (call setup request message) is IS
It is sent to the receiving telephone 2b via the DN network 41. (2)
Thereby, the receiving-side telephone 2b performs a call setting process,
The ISDN sends a CALL PROC (Processing Notification for Call Setup) to the calling telephone. (3) When the processing for setting up the call is completed, the called telephone 2b emits a ringing tone and sends a calling message ALTER to the calling telephone via the ISDN network. Thereafter, (4) if the called party picks up the handset and answers (off-hook), the called telephone notifies CONN (response notification) to the calling telephone 2a via the ISDN network. (5) The calling telephone 2a is IS
A CONN ACK (confirmation notification) is sent to the called telephone via the DN network, and a communication path is formed between the calling telephone and the called telephone. The SET UP message in such an ISDN network calling procedure includes the telephone number of the caller and is displayed on the display of the called telephone.

Overall Control (a) Procedure for Registering Caller's Phone Number The caller's phone number is registered in the memory 11b in advance in accordance with the procedure shown in FIG. That is, first, a registration key provided on the operation unit 11f is depressed (step 101), and then a memory number is input (step 102). In this case, when registering the telephone number of the caller corresponding to the base unit, enter the memory number ~,
When registering the caller's telephone number in association with the first slave unit, enter the memory number ~, and in registering the caller's telephone number in association with the second slave unit, enter the memory number ~
Enter

Next, the user inputs the telephone number of the caller and whether or not to perform delayed ringing by key operation (steps 103a to 103c). As a result, the control unit 11a determines that the input caller telephone number and the delayed
The on / off state of the ringing flag is displayed on the display unit 11e (step 104), and the user confirms the number by looking at the display (step 105). If the number is incorrect, the user presses down the delete key (step 106). Enter the user's telephone number. If the correct caller telephone number and ON / OFF of the delayed ringing flag are displayed, the registration key is depressed (step 107). By depressing the registration key, the control unit 11a stores the caller telephone number and the on / off state of the delayed ringing flag in the designated memory number position of the memory 11b (step 108). Since then
Similarly, caller phone numbers, delayed
The on / off state of the ringing flag is registered in the memory 11b.

(B) Call control FIGS. 7 and 8 are flow charts of call control of the cordless telephone according to the present invention. When there is an incoming call to the cordless telephone via the ISDN network, the SE including the caller telephone number
A T UP message is sent. However, when a call is received via the analog network, the caller telephone number is not sent to the cordless telephone. Therefore, when there is an incoming call (step 201), the control unit 11a checks whether the caller telephone number has been received (step 202), and if the caller telephone number has not been received, the base unit 11, the first and second children. Machine 2
Activate the ringing tone generators 11k and 21d to generate a ringing tone (step 203). Thereafter, until a response is received from either the parent device or the child device (off-hook),
Alternatively, the ringing tone is continued until the caller disconnects the call path (on-hook) (steps 204 and 20).
5) When any one of them is satisfied, the sound is stopped (step 206).

On the other hand, if the caller's telephone number has been received in step 202, the caller's telephone number matches the caller's telephone number stored in the memory numbers of the first slave unit, in other words, It is checked whether the call is to be received by the first slave unit 21 (step 207).

If the incoming call is not addressed to the first handset, the caller's telephone number will be changed to the memory number of the second handset, if it does not match the caller's phone number stored in the memory number ~. It is checked whether it matches the stored caller's telephone number, in other words, whether the call is to be received by the second handset 22 (step 208).

If the incoming call does not match the caller telephone number stored in the memory number ~, and therefore the incoming call is not addressed to the second handset, the caller telephone number is then stored in the memory number ~ of the base unit 11. It is checked whether the received caller's telephone number matches the received caller's telephone number, in other words, whether the call is to be received by the base unit 11 (step 209).

If there is no match with the caller telephone number stored in the memory numbers (1) to (4), the caller telephone number is not registered in the memory 11b, and it is not known to whom. For this reason, in step 203, all the ringing tone generators of the master unit and the first and second slave units are activated to generate a ringing tone, and thereafter, until a response is received from either the master unit or the slave unit (off-hook). ), Or continue ringing until the caller disconnects (on-hook) the call path, and stops ringing when either is satisfied (steps 204 to 20).
6). However, in step 209, if the received caller telephone number matches the caller telephone number stored in the memory number ~, it is assumed that the call is to the parent device user and the parent device 11
Only the ringing tone generation unit 11k is activated to generate a ringing tone with the tone color of the parent device (step 210), and thereafter, the processing from step 204 onward is repeated.

In step 207, if the received sender's telephone number matches the sender's telephone number stored in the memory numbers (1) to (2), it is regarded as addressed to the first child device user and the first
Only the ringing tone generator 21d of the slave unit 21 is activated to generate a ringing tone (step 211). In step 208, if the received caller telephone number matches the caller telephone number stored in the memory number,
Only the ringing tone generator of the second handset 22 is activated to generate a ringing tone (step 212). As described above, when an incoming call is received from a telephone having a telephone number registered in the memory in advance, a ringing tone can be generated only from the child device or the parent device corresponding to the telephone number, and the usability of the cordless telephone can be improved. .

After ringing the first or second handset in step 211 or step 212, the control section 11a sets the delayed ringing flag Fr stored in connection with the caller telephone number to "1". , "0" (ON / OFF) is determined (step 213). When the delayed ringing flag Fr is “0”, the ringing tone continues to be sounded until a response is received from either the master unit or the slave unit or until the caller disconnects the communication path, and either one is satisfied. When it is performed, the sound is stopped (steps 204 to 20).
6).

On the other hand, if the delayed ringing flag Fr is "1" at step 213, the control section 11a activates the timer 11c and counts the elapsed time after the start of ringing tone generation (step 214). Then, it is monitored whether there is a response from either the parent device or the child device, or whether the caller has disconnected the communication path (steps 215 and 215).
6) If none of them is satisfied, it is checked whether the elapsed time has reached the set time (step 217). If not, the monitoring from step 215 onward is continued.

If there is a response from either the parent device or the child device before the set time is reached, or if the caller disconnects the communication path, the timer stops counting (step 218). Thereafter, the ringing of the handset is stopped (step 206).

However, if there is no response compared to either the master unit or the slave unit, and if the caller does not cut off the communication path and the elapsed time reaches the set time, the control unit 11a sets the ringing tone of the slave unit. The ringing is stopped, and instead, the ringing tone generator 11k of the base unit 11 is activated to generate a ringing tone with a tone corresponding to the called slave unit (step 219). This allows
Even if there is no answer at the time of receiving a handset, the tone of the ringing tone from the base unit can be used to identify the caller, and if a user of the handset is nearby, he / she will immediately call himself. It is possible to identify that the call has been made, and to answer the other party without taking over.

Thereafter, the base unit 11 continues ringing until either the master unit or the slave unit answers the call or the caller disconnects the communication path. Stop (steps 204 to 206). As described above, the present invention has been described with reference to the embodiments. However, the present invention can be variously modified in accordance with the gist of the present invention described in claims, and the present invention does not exclude these.

[0029]

As described above, according to the present invention, by calling only the master unit, it is possible to identify who called the telephone, and the user of the master unit can answer the other party without any intermediary.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating the principle of the present invention.

FIG. 2 is a configuration diagram of a cordless telephone according to the present invention.

FIG. 3 is an explanatory diagram of storage contents of a memory.

FIG. 4 is a configuration diagram of a slave unit.

FIG. 5 is an explanatory diagram of a control procedure of a circuit-switched call of ISDN.

FIG. 6 is a flowchart of a caller telephone number registration procedure.

FIG. 7 is a first flowchart of call control.

FIG. 8 is a second flowchart of call control.

[Explanation of symbols]

 11. Base unit of cordless telephone 11a Control unit (CPU) 11b Memory 11c Timer 11k Ringing tone generation unit 21 First child unit 31 of cordless telephone 31 Second child unit 41・ ISDN network which is a digital network

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5K027 AA12 EE15 FF03 5K036 AA07 EE13 JJ04 5K067 AA34 BB08 DD13 EE02 EE10 FF07 FF13 FF27 HH23 KK15

Claims (2)

[Claims] 1. A parent-child telephone system having a parent device connected to a network side by wire and a child device wirelessly connected to the parent device, wherein the parent device stores a telephone number corresponding to the parent device. A storage unit capable of receiving a signal from the network side at the time of receiving an incoming call, if the telephone number corresponding to the base unit in the storage unit, calls the base unit, Control means for controlling not to make a call in the handset, and a parent-child telephone system. 2. A parent-child telephone system having a base unit connected to a network side by wire and a base unit wirelessly connected to the base unit, wherein the base unit makes a call at the base unit, Storage means capable of storing a telephone number of a target that is not called at the time of receiving a signal from a network side at the time of an incoming call, when the telephone number obtained corresponds to the target telephone number, Control means for making a call in the parent device and controlling not to make a call in the child device.