JP2003339076A - Digital cordless system for business use - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a cordless system in a business establishment in which a service during a call by a private branch exchange can be easily used with a simple operation. SOLUTION: Detecting means for detecting that any one of a plurality of keys is continuously depressed for a predetermined time or more during a call by a cordless telephone, and a call service for requesting a private branch exchange to provide the plural keys and a call service. A table that stores request dial information in association with the request dial information, and a reading unit that reads, from the table, call service request dial information corresponding to a key that has been detected by the detection unit that has been continuously pressed for a predetermined time or more during a call. Processing means for transmitting the busy service request dial information read by the reading means to the private branch exchange via the communicating base station.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a business digital cordless system.

[0002]

2. Description of the Related Art In a business communication system, it is required to efficiently and economically provide a "system capable of communicating with anyone, anytime, anywhere". Due to increasing demand for portability, cordless phones (P
In-house digital cordless systems that enable communication by S) are provided.

In the in-house cordless system, P
It is desired that the S can provide various services by the private branch exchange (PBX) such as recording during a call even while talking and moving.

In the conventional office cordless system, when a PS user uses such a service during a call, the PS hold key is pressed to put the call on hold.
After that, the dial information corresponding to the desired service had to be sent to the PBX by a predetermined key operation. During a call, if you press the hold key before pressing the numeric keypad, the tone sound will be transmitted along with the voice signal to the PB.
The conventional numeric keypad cannot be used as a function key for directly calling the PBX service because it is only sent to the call destination via X. For this reason, in order to use the service during a call, the call must be interrupted, the use of the service is taken into consideration by the callee, and the serviceability and operability are poor.

[0005]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an in-house cordless system which can easily use a service during a call by a private branch exchange by a simple operation.

[0006]

According to a first aspect of the present invention, a cordless telephone having a key section including a plurality of keys, a base station for communicating with the cordless telephone, the base station, and A private branch exchange accommodating an extension telephone, wherein the private branch exchange provides a busy service to the cordless telephone in accordance with call-in-service request dial information following a hooking signal from the cordless telephone during the call of the cordless telephone. In the digital cordless system for business establishments, the cordless telephone detects the plurality of keys continuously pressed for a certain time or longer during a call, and a detecting means for detecting the plurality of keys and the in-call service. A table for associating and storing in-call service request dial information requested to the private branch exchange; A reading means for reading from the table the in-call service request dial information corresponding to the key which is detected that the section has been pressed continuously for a certain period of time during the call; and the in-call service request dial information read by the reading means. It is characterized by further comprising processing means for transmitting a hooking signal to the private branch exchange via the base station in communication.

According to a second aspect of the present invention, a cordless telephone having a key unit including a plurality of keys, a base station for communicating with the cordless telephone, and a premises accommodating the base station and an extension telephone. In a business office digital cordless system including an exchange, the private branch exchange is configured to provide a busy service to the cordless telephone according to a busy service code received from the cordless telephone during a call of the cordless telephone. Then, the cordless telephone detects the one of the plurality of keys continuously pressed during a call for a predetermined time or longer, and a request for the plurality of keys and busy service to the private branch exchange during a call. A table in which the service code is stored in association with it and the detection unit is continuously pressed for a certain time or longer during a call. Reading means for reading the in-call service code corresponding to the detected key from the table, and processing means for sending the in-call service code read by the reading means to the private branch exchange via the base station in communication. It is characterized by comprising.

According to a third aspect of the present invention, in the business digital cordless system according to the first aspect or the second aspect, the cordless telephone sets the plurality of keys to the in-call service request dial information and the in-service code. It is characterized by further comprising registration means for registering in the table in association with.

[0009]

According to the first aspect of the present invention, various call services provided by the private branch exchange can be used by a simple operation of pressing a predetermined key during a call on the cordless telephone.

According to the second aspect of the invention, when using the service during a call, the call is not put on hold, so that the conversation is not interrupted and the other party of the call is not noticed.

According to the third invention, it is possible to assign an arbitrary in-call service to an arbitrary key so that the user of the cordless telephone can easily use it.

[0012]

1 is a diagram showing the configuration of a business digital cordless system according to the present invention. The digital cordless system for the business office is a private branch exchange (PBX) 2, a plurality of base stations (BS) 4 accommodated in the PBX 2, a plurality of extension telephones 6 also accommodated in the PBX 2, and a cordless system for communicating with the BS 4. Telephone (P
S) 8 and. The PBX 2 can be further connected to the other telephone 12 via the public network 10 and can also be connected to the other telephone via a private line (not shown). The business digital cordless system according to the present invention operates in the same manner as the conventional business digital cordless system with respect to operations not related to the mid-call service. Therefore, all parts of all the constituent elements of the office digital cordless system according to the present invention that are not directly related to the mid-call service may be the same as those of the conventional office digital cordless system.

The PBX 2 is connected to the public network 10 or a private line (not shown), and when an incoming call is received from the public network 10 or the private line, the PBX 2 calls the extension telephone 6 or PS 8 which is the receiving terminal designated by the extension number. If the caller's telephone terminal 12 and the receiving terminal are connected and a call is made from the PS 8 or the extension telephone 6,
Connect the receiving terminal and the calling terminal. Like the conventional PBX, the PBX 2 has a switch (SWitch: SW) 21, a central controller (CC) 22, a main memory (MM) 23, a maintenance console (MC) 24, and a voice message. A system (Voice Message System: VMS) 25, a trunk circuit (TrunK circuit: TK) accommodating a public line
26. Base Station Line Circuit:
BSLC) 27 and line circuit (LC) 2
Equipped with 8. CC22 has PS8 received from MC24 in addition to the function as a processor in the conventional PBX.
Is a processor having a function of storing in-call services provided to the user and in-call service request dial information requesting each in-call service in a translation table (not shown) in the MM 23. The MM 23 has a RAM which is a work memory executed by the CC 22 and a program memory which stores a translation table and a program executed by the CC 22. M
C24 is a console for inputting information and the like for creating the translation table. The VMS 25 outputs the corresponding recorded message (including the voice recorded by the caller) to the line according to the instruction of CC22, and the voice input from the line is the extension of the called terminal instructed from CC22. It has the function of storing with the number. TK
A trunk circuit 26 accommodates a public line.

FIG. 2 is a block diagram showing the structure of the PS 8 shown in FIG. The PS 8 includes a radio transceiver (RF) 31 and
Antenna 32, battery (BATT) 33, BATT3
3, a power supply unit (POW) 34 for converting the power supply voltage output from the unit 3 into an internal voltage, a wireless modulation / demodulation unit (MDM) 35 for modulating / demodulating π / 4 shift QPSK, and a time division multiplexing processing unit (TDMA) 36. And a processor (CTL) 37,
A storage unit (MEM) 38, a key unit (KP) 39, a display unit (DSP) 40, a lamp display unit (LED) 41,
32 kbps voice signal codec unit (ADPCM) 4
2, a call circuit unit (SP) 43, and a receiver unit (R) 4
4 and a microphone unit (M) 45. TDMA36
Format the control information into a wireless frame from the communication signal received from the ADPCM 42 or the CTL 37, and send it to the MDM 35 and vice versa. M
The EM 38 is a RAM that is a work memory of the CTL 37.
And a one-touch dial information table and CTL described later.
37 includes a flash memory including a program memory that stores a program to be executed by 37. The KP 39 includes a numeric keypad and various function keys, and is used when inputting dial information and operations corresponding to various functions.

FIG. 3 is a functional block diagram of the CTL 37 of PS8 shown in FIG. The CTL 37 is a call control unit 51.
And a one-touch dial information registration unit 53.

FIG. 4 is a functional block diagram showing the in-call service processing unit 52 of the CTL 37 shown in FIG. 3 in more detail. The in-call service processing unit 52 includes a ten-key press detecting unit 61 during a call and a one-touch dial information reading unit 62.
And a service sequence processing unit 63 during a call.

FIG. 5 is a functional block diagram showing the one-touch dial information registration section 53 of the CTL 37 shown in FIG. 3 in more detail. The one-touch dial information registration unit 53 includes a ten-key input unit 64, a function key input unit 65, and a table registration unit 66. The ten-key input unit 64 is for transmitting the in-service service request dial information and the in-service service code to the PBX 2 when pressed during a call, and in the one-touch dial information table stored in the MEM 38, the key in the KP 39 and the in-service service request dial information, The key is used to register the relationship of the service code during a call. The ten-key input unit 64 displays a message requesting the ten-key input on the DSP 40 when a predetermined series of key input operations are performed in any mode, and then the ten-key input mode is set. When the key is entered and the ten key is pressed, the character corresponding to the pressed ten key is displayed on the DSP 40. The numeric keypad is
Not only “0” to “9” but also “*” and “#” may be used. The function key input unit 65 is, for example, a DSP 40 when a predetermined series of key input operations are performed when no mode is selected and telephone book (one-touch) registration is selected.
After displaying a message requesting input of the ten-key pad on the, enter the one-touch dial information (service during call) input mode, and each time the ten-key for inputting the one-touch dial information is pressed, the character corresponding to the pressed ten-key is displayed. When the one-touch registration is selected at the end of the display on the DSP 40 and the ten-key for registering the one-touch dial information is pressed, it is displayed that the telephone directory (one-touch) registration is completed, and the table registration unit 66 displays the ten-key and the one-touch dial information. Instruct to register the correspondence relationship in the one-touch dial information table described later. The table registration unit 66 includes a ten-key input unit 64 and a function key input unit 65.
The information indicating the correspondence relationship between the ten-key input according to the instruction of 1) and the one-touch dial information (service during call) is registered in the one-touch dial information table described later.

FIG. 6 is a diagram showing an example of the configuration of the one-touch dial information table stored in the MEM 38 of FIG. Key numbers are shown on the left side, and service information shown on the right side is registered corresponding to each key.

FIG. 7 is a flow chart of the operation performed by the service processing unit during a call to realize the operation of the business digital cordless system according to the present invention.
[Fig. 6] is a sequence chart for explaining the operation of one embodiment of the digital cordless system according to the present invention, which is an example of a case where a call during a call is recorded. For example, the telephone 12 accommodated in the public network 10 goes off-hook (calls),
It is assumed that a dial number designating PS8 is input. P
When the incoming call to the PS8 is designated, the BX2 refers to the location registration table and locates the PS8 located in the area.
In S4, a SETUP message instructing an incoming call to PS8 is transmitted. BS4 informs PS8 of the incoming call. P
S8 sends a link establishment request message to BS4. Upon receiving this link establishment request message, BS4 allocates a link channel (call channel) to PS8. A synchronization burst signal is transmitted and received between BS4 and PS8 to confirm communication. A SABM message, a UA message, an incoming call response message, a SETUP message including information about a calling party (for example, a dial number) is transmitted / received between BS4 and PS8, a CALLPROC message is transmitted / received between PBX2 and PS8, BS4 Between PS2 and PS8, a secret key setting message,
Send / receive authentication request message and authentication response message, P
An ALERT message is transmitted and received between the BX 2 and the PS 8 to perform a predetermined incoming call sequence process. PBX
2 receives the ALERT message via BS4 and returns an RBT to the caller. The call control unit inside the PS8
Ring the ringer and display the caller's dialed number on the DSP. The user of PS8 depresses the start key to stop the ringer and sends CONN to BS4. P
When BX2 receives CONN, it sends CONN A to PS8.
Send CK. Also, the RBT to the calling party is stopped and the call state is entered. PS8 also receives the CONN ACK and enters the call state.

Here, if the user of the PS 8 wants to use the call recording service, for example, he or she continuously presses a key corresponding to the service information requesting the call recording service, for example, the ten-key "0" for a certain time or longer. To do.

In step S101 of FIG. 7, the ten-key press detecting section 61 during a call determines whether or not any key of the KP39 is pressed. If a certain key (the numeric keypad “0” in this example) is pressed, the process proceeds to step S102, and if none of the keys is pressed, the process returns to step S101.

In step S102, the ten-key press detection unit 61 during a call sets a time T to a timer. In step S103, the ten-key press detecting unit 61 during a call is in progress.
Determines whether the key scan cycle Δt has elapsed. If the key scan period Δt has elapsed, step S10.
If the key scan period Δt has not elapsed, the process proceeds to step S103 and waits.

In step S104, the ten-key press detection section 61 during a call determines whether or not the key is still pressed. If the key 128 is still pressed, the process proceeds to step S105, and if the key 128 is not pressed, the process returns to step S101. In this example,
Since the numeric key “0” has been pressed for a certain time or longer, the process proceeds to step S105.

In step S105, the ten-key press detection unit 61 during a call has timed out for the time T (T = 0).
It is determined whether or not. Timer T times out (T =
Then, it is determined that the key has been pressed, and the process proceeds to step S108. If the timer T has not timed out, the process proceeds to step S106. Here, since the numeric key “0” has been pressed for a certain period of time, step S1
I will proceed to 08. In step S106, the ten-key press detection unit 61 during a call substitutes T-Δt for T and proceeds to step S111. If the key is still depressed, the ten-key depression detection unit 61 proceeds to step 104 to monitor the ten-key depression, If the key has not been pressed, the dial information corresponding to the key is sent to the PBX 2 in step S107.

In step S108, the one-touch dial information reading section 62 searches the one-touch dial information table using the pressed key as an index, and reads the in-call service request dial information corresponding to the numeric key. Here, as shown in FIG. 6, the in-call service request dial information “9999” corresponding to the numeric key “0” is read.

In step S109, the service sequence processing unit 63 during a call instructs the TDMA 36 to send a hooking signal. The hooking signal is BS
It is received by PBX2 through No.4. The PBX 2 sends a hold tone to the other party.

In step S110, the busy service sequence processing unit 63 sets the busy service request dial information read by the one-touch dial reading unit 62 to T.
Instruct the DMA 36 to send. The in-call service request dial information is sent to the BS 4 via the antenna 32. The in-call service request dial information is received by the PBX 2 through the BS 4. PBX2
Retrieves the translation table, activates the service (in this example, "record during call") corresponding to the received in-call service request dial information, stops the hold tone for the other party, and returns to the call.

FIG. 9 is a sequence chart for explaining the operation of another embodiment of the digital cordless system according to the present invention, which is an example of a case where a call during a call is recorded as in the case of FIG. Up to the time point when the PS 8 starts a call, it is the same as in the example of FIG. Furthermore, as in the example of FIG.
The in-call service processing unit 52 of the PS8 performs the operations up to step S108 in FIG. Here, as shown in FIG. 6, the in-call service code “A” corresponding to the numeric key “1”
BCD "is read out, and in this example, step S
The hooking transmission of 109 is skipped, and step S11
The process proceeds to the transmission of the in-call service request dial information of 0. The PBX 2 searches the translation table and activates the service corresponding to the received in-call service request dial information (“recording during call” in this example) without sending a hold tone to the other party.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of a business digital cordless system according to the present invention.

FIG. 2 is a block diagram showing a configuration of PS8 in FIG.

FIG. 3 is a functional block diagram of a CTL 37 of PS8 shown in FIG.

4 is a functional block diagram showing the in-call service processing unit 52 of the CTL 37 shown in FIG. 3 in more detail.

5 is a functional block diagram showing the one-touch dial information registration unit 53 of the CTL 37 shown in FIG. 3 in more detail.

6 is a diagram showing an example of a configuration of a one-touch dial information table stored in the MEM 38 of FIG.

FIG. 7 is a flowchart of an operation performed by the service processing unit during a call to realize the operation of the business digital cordless system according to the present invention.

FIG. 8 is a sequence chart illustrating the operation of an embodiment of a digital cordless system for business establishments according to the present invention.

FIG. 9 is a sequence chart for explaining the operation of another embodiment of the business digital cordless system according to the present invention.

[Explanation of symbols]

2 private branch exchange 4 base stations 6 extension telephones 8 cordless phones 10 public network 12 Other phones 21 switch 22 Central controller 23 Main memory 24 Maintenance console 25 voice message system 26 Trunk circuit 27 Base station line circuit 28 line circuit 31 Wireless transmitter 32 antenna 33 batteries 34 Power Supply 35 Modulator / Demodulator 36 Time Division Multiple Processing Unit 37 processors 38 Storage 39 Key part 40 Display 41 Lamp display 42 Audio signal codec section 43 Call circuit section 44 Receiver 45 Microphone 51 call control unit 52 Call processing unit 53 One-touch dial information registration section 61 Keypad press detection part during a call 62 One-touch dial information reading section 63 In-call service sequence processing unit 64 numeric keypad input section 65 Function key input section 66 table registration section

Continued front page    (72) Inventor Shigehiko Yazawa             1-403 Kosugi-cho, Nakahara-ku, Kawasaki-shi, Kanagawa             Local Fujitsu i Network Systems             Within the corporation F-term (reference) 5K049 BB16 FF01 GG00                 5K067 AA21 BB08 DD11 EE02 EE10                       EE16 HH06 HH07 HH11 HH22

Claims (3)

[Claims] 1. A cordless telephone having a key unit including a plurality of keys, a base station for communicating with the cordless telephone, and a private branch exchange accommodating the base station and an extension telephone. In the digital cordless system for business, wherein the cordless telephone makes a call during a call of the cordless telephone, the cordless telephone provides a calling service to the cordless telephone in accordance with a busy service request dial information following a hooking signal from the cordless telephone. Detecting means for detecting that any one of the plurality of keys has been pressed continuously for a predetermined time or more,
A table that stores the plurality of keys in association with in-service service request dial information that requests in-call service to the private branch exchange, and a key that detects that the detection unit has been pressed continuously for a certain period of time during a call. Reading means for reading the in-call service request dial information from the table, and sending the in-call service request dial information read by the reading means to the private branch exchange through the base station in communication, following the hooking signal. A digital cordless system for business establishments, comprising: 2. A digital cordless business establishment comprising: a cordless telephone having a key unit including a plurality of keys; a base station for communicating with the cordless telephone; and a private branch exchange accommodating the base station and an extension telephone. In the system, the private branch exchange is configured to provide a busy service to the cordless telephone according to a busy service code received from the cordless telephone during the call of the cordless telephone, and the cordless telephone is busy. And a table for storing the detecting means for detecting that any one of the plurality of keys has been continuously pressed for a predetermined time or more, and the plurality of keys and a service code during a call requesting the private branch exchange for the service during the call. And the key that detects that the detection unit has been pressed continuously for a certain period of time during a call Read-out means for reading the in-call service code from the table, and processing means for sending out the in-call service code read out by the reading means to the private branch exchange via the base station in communication. Digital cordless system for offices. 3. The business digital cordless system according to claim 1, wherein the cordless telephone registers the plurality of keys in the table in association with the busy service request dial information and the busy service code. A digital cordless system for business establishments, which further comprises means.