JP2570875B2 - Wireless telephone system - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless telephone system, and more particularly, to a wireless telephone system for providing wireless communication to a wireless telephone moving within a wireless connection area. More particularly, the present invention relates to a local wireless telephone system suitable for constructing a tenant-divided local wireless telephone system indoors where a plurality of offices are located.

2. Description of the Related Art An on-premise wireless telephone system can provide a mobile telephone service that can receive telephone services anywhere on a premises, and lays a telephone connection cable required by a conventional wired telephone system even when changing the floor layout. It has the advantage that no change work is required.

Problems to be Solved by the Invention However, the conventional private wireless telephone system is basically a system on the assumption that a wireless telephone and a user who uses it are associated one-to-one, and the telephone number is Not necessarily suitable for use by tenants or departments. For example, in a key telephone system, a call to a department can be answered by anyone in the department, and the line can be easily transferred and connected to the intended party by a line hold or a line response operation. This is possible because the key telephone is provided with the office line button and the office line state display, so that the operator can grasp the state of each office line and can designate and capture the office line based on the state. In the conventional private radio telephone system, holding the line and responding to the line requires a considerably complicated key operation.

The present invention has been made in view of the above-mentioned conventional circumstances, and accordingly, an object of the present invention is to provide a novel wireless telephone system capable of solving the above-mentioned problems inherent in the conventional technology. .

Means for Solving the Problems In order to achieve the above object, the private wireless telephone system according to the present invention provides a station line state in a control radio transmission path for performing call connection control, that is, presence / absence of arrival of each station line, A state such as during a call or on-hold is transmitted, and the line state indicator provided in the wireless connection area and provided with a receiver for the control wireless transmission path receives the state and displays the state of each office line. The configuration is such that the telephone subscriber can grasp the state of the office line, and the wireless telephone subscriber can specify the desired office line and make a call connection request.

In addition, PBX extension groups are grouped into PBXs that are pulled into the switching control station in accordance with the tenant division of the PBX so as to be suitable for the behind-the-scenes wireless telephone system of the PBX that provides the tenant service, and the line status indicator displays the extension status for each group. The tenant division of the wireless telephone is performed by displaying and managing the wireless telephone by assigning an identification code so that these groups can be specified.

EXAMPLES Hereinafter, the present invention will be described in detail with reference to the drawings with regard to a preferred embodiment thereof.

FIG. 1 is a system block diagram showing one embodiment of a wireless telephone system according to the present invention.

Referring to FIG. 1, the switching control apparatus EX has a total of eight subscriber lines from the fixed telephone network, and four of them are used as tenant A's. The book is the exchange control device as the office line for tenant B
EX manages it. Further, a wired line is connected from the exchange control device EX to a total of ten fixed wireless devices BS, and five fixed wireless devices BS are connected to tenant A's service area.
SAA and tenant B are installed so as to form a service area SAB.

Tenant A has eight wireless telephones RT and one line status indicator CLD, and tenant B has ten wireless telephones RT and two line status indicators CLD.

It is desirable that the number of fixed wireless devices BS of each tenant be at least the number of local lines of each tenant + 1 in view of effective use of the curve. In this embodiment, both tenants are provided with fixed radio equipment BS equal to the number of office lines + 1. In addition, the number of line status indicators CLD depends on the positional relationship between the user of the radio telephone RT in each tenant and the line status indicator CLD, and all RT users of each tenant can see the display of the line status indicator CLD,
It is sufficient if the number is convenient for listening to the sound output from the line status indicator CLD. In this embodiment, one line status indicator CLD is installed for tenant A and two line status indicators CLD are installed for tenant B.

FIG. 2 shows the appearance of the wireless telephone RT. The radio telephone RT has a built-in radio, and an antenna is used to improve sensitivity.
11 is equipped. Further, a transmitter 12, a receiver 13, and twelve dial buttons 14 and three function buttons 15 as operation buttons are provided. The dial button 14 is used for inputting a destination dial and specifying an office line. Call button 15 for activating a connection request as function button 15
a and hold button 15b for requesting line hold during a call
And an end button 15c for activating the end of the call. Further, the wireless telephone RT is provided with a charging terminal 16 for charging the internal battery.

FIG. 3 shows the appearance of the line status indicator CLD. The line status indicator CLD has a shape to be installed on a wall or the like, and is provided with an antenna 21 and a status display LED 22 corresponding to a local line. The status display LED 22 is displayed as shown in Table 1 in accordance with the status of the corresponding line.

Further, the line status indicator CLD is provided with a speaker 23 so as to emit a ringtone when at least one office line is receiving a call.

The radio of the fixed radio BS and the radio of the radiotelephone RT are configured as a transceiver capable of simultaneous transmission / reception by multi-channel access and a call connection. One predetermined channel is used for call connection control. Channel, and the remaining channels are used for calls.

The radio of the line status indicator CLD is a receiver that can receive only the radio channel transmitted from the fixed radio BS among the call connection control channels.

The fixed radio BS has, as an operation mode, a mode for receiving a call from the radio telephone RT and a mode for not receiving the call,
The exchange control device EX controls the mode so as to accept the transmission of one fixed wireless device BS for each tenant. The fixed wireless device BS in the mode for accepting the call waits on the control wireless channel, and upon receiving the call from the wireless telephone RT, transmits a call channel whose availability is confirmed in advance to the wireless telephone RT, and communicates with the wireless telephone RT. A call path is established during this period, and a call is transmitted to the exchange control device EX. When receiving the display information from the exchange control device EX, the fixed wireless device BS in the mode not accepting the transmission transmits the information on the control wireless channel and shifts to the mode for accepting the transmission. When the call is ended, the mode is set to a mode in which the call is not accepted.

Further, a tenant identification code to which each fixed wireless device BS and each wireless telephone RT belong is stored, and the fixed wireless device BS that has received the transmission signal from the wireless telephone RT has a tenant identification code included in the signal. Is determined as to whether or not it matches the one stored therein, and processing is performed only when it matches.

Next, the operation of this embodiment will be described with reference to FIGS. In both figures, the control sequence of the system is shown focusing on one tenant. In the exchange controller EX, the control of both tenants is performed in parallel.

FIG. 4 shows a sequence in which an incoming call is received on the office line 1 and the RT user responds to the incoming call, transfers the answer to the RT user, and the RT user turns into a call and ends the call. .

With reference to FIG.
In the exchange control device EX, through the vacant BS among the fixed wireless devices BS arranged in the zone of the tenant,
The office line 1 sends out a display information signal indicating that a call is being received.
When the line status indicator CLD receives the signal, the line status indicator LED 22 changes the status indicator LED 22 of the office line 1 to indicate that a call is being received, and starts outputting a ring tone from the speaker 23. The RT user notices the incoming call and presses only the send button 15a. At this time, the outgoing signal transmitted from the radiotelephone RT includes information of no line designation as the line designation information ((0) after the outgoing signal in the figure).
) And a tenant identification code.

This transmission signal is received by the fixed wireless device BS that has transmitted the display information, and the communication path is set between the fixed wireless device BS and the wireless telephone RT on the communication channel included in the communication channel designation signal. The fixed wireless device BS transmits the received transmission information to the exchange control device EX. The exchange control device EX responds to the incoming line 1 because the line designation information included in the received transmission information does not designate the line, that is, closes the loop, and communicates with the fixed radio BS. The communication path between the office lines 1 is connected. At the same time, the display information indicating that the line 1 is busy is transmitted to the vacant fixed transceiver BS of the tenant.
(Here, BS). This display information is received by the line status indicator CLD, and the display of the office line 1 is switched from the incoming call to the active call display. Since there is no other incoming office line, the ring tone is stopped.

The RT user is requested by the RT user to make a call through the call with the other party, and presses the hold button 15b of the own RT. At this time, the hold signal is transmitted to the fixed radio BS
It is sent to the exchange control device EX via The wireless telephone RT and the fixed wireless device BS return to the standby state.

Upon receiving the hold signal, the exchange control device EX restores the communication path between the station line 1 and the fixed wireless device BS, starts sending the hold melody to the station line 1, and transmits the hold line 1 through the fixed wireless device BS. Sends the display information indicating that the line is on hold, and the state display of the office line 1 on the line status indicator CLD is switched to the on-hold display.

The RT user who has received the answer transfer from the RT user presses the dial button 14 having the same number as the corresponding line, and then presses the call button 15a. At this time, an outgoing signal including information indicating the designation of the line 1 is transmitted from the radio telephone RT as the line designation information, and the switching control unit EX having received the signal via the fixed radio BS transmits the signal to the line 1 And fixed radio
At the same time as connecting the communication path between the BSs, the station line 1 transmits display information indicating that the telephone line is busy, and switches the display of the line status indicator CLD.

When the call ends, the RT user presses the end button 15c. The end signal is sent to the switching control unit EX through the fixed radio BS, and the switching control unit EX restores the station line 1, that is, opens the loop, sends out display information indicating that the station line 1 is empty, and transmits the line state. Switches the display of the display unit CLD.

FIG. 5 shows a control sequence when the RT user P and the RT user Q make successive calls.

Referring to FIG. 5, RT user P designates the line 1 and makes a call, while RT user Q makes a call without specifying the line. The operation of each part is the same as that described with reference to FIG.
When receiving the dial signal, the exchange control device EX transmits a dial pulse (DP) to the corresponding office line. The line designation information of the outgoing signal received from the radiotelephone RTQ indicates that there is no line designation, and at that time, since there is no incoming line, the line 3 Is selected and captured.

In the above embodiment, two cases are described in which one station line is designated as station line designation information or no station line is designated at all. That is, when there is no designation, the exchange control unit EX
Depending on the presence / absence of an incoming telephone line, if there is an incoming call, a response is made to the incoming call; However, there is a case where the RT user wants to make a call without answering the incoming call. In such a case, the user presses the dial * button and then presses the call button, and includes that fact in the call signal. In such a case, a configuration may be adopted in which a vacant office line is captured even if there is an incoming office line.

Further, as shown in FIG. 6, as a modified example of FIG. 3, an RT fixing unit 24 is provided on the line status indicator CLD, and is installed on the desk of each RT user. It is also possible to realize. In addition, the charger is built in the line status indicator CLD, and the charging terminal provided on the wireless telephone RT contacts the charging output terminal of the charger when the wireless telephone RT is placed on the fixed base. This makes it possible to compensate for the battery consumption of the radio telephone RT that is waiting.

As described above, according to the present invention, according to the present invention, the switching control device notifies the line status indicator installed in the service area via the call connection control wireless transmission path and displays it. A radio telephone having the same operability as a conventional key telephone device by notifying the radio telephone subscriber of the state of the office line and allowing the radio telephone subscriber to select a connection destination curve when a call connection request is made. It becomes possible to provide a system.

Further, according to the present invention, the office line is divided into groups, and the radio telephones are also divided into groups in correspondence with the groups, and the identification codes are assigned and managed for each group. By providing an identification code corresponding to the above, it becomes possible to construct a wireless telephone system suitable for behind-the-scene installation of a PBX that performs tenant service.

[Brief description of the drawings]

FIG. 1 is a system block diagram showing an embodiment of the present invention, FIG. 2 is an external view showing an embodiment of a wireless telephone according to the present invention, and FIG. 3 is an embodiment of a line status display according to the present invention. FIG. 4 shows an incoming call / hold / according to the present invention.
Response control sequence diagram, FIG. 5 is a transmission control sequence diagram according to the present invention, and FIG. 6 is an external view showing another embodiment of a line status display having a radio telephone fixed base and a radio telephone charger. is there. EX: Switching control unit, BS: Fixed radio, RT: Radiotelephone, CLD: Line status display, SAA: Tenant A service area, SAB: Tenant B service area 11, 21 ... Antenna, 12… Transmitter, 13… Receiver, 14
…… Dial button, 15 …… Function button (15a …… Call button, 15b …… Hold button, 15c …… End button), 16
…… Charge terminal, 22… Local line status display LED, 23 …… Speaker, 24 …… Wireless telephone fixed base part, 25 …… Power supply for built-in CLD charger for wireless telephone charging

Claims (6)

(57) [Claims] A wireless telephone, comprising: a plurality of fixed wireless devices installed in a wireless connection area; an exchange control device between a fixed telephone network and the wireless devices and connected to each other by a wired line; In a wireless telephone system having one or a plurality of call connection control wireless transmission lines and a plurality of call wireless transmission lines, the switching control device sends a signal indicating a state of each of the fixed telephone network side wired lines to the fixed wireless device. Means for sending out on the call connection control wireless transmission path is provided, and a signal indicating the state of the fixed telephone network side wired line sent from the switching control apparatus through the call connection control wireless transmission path is received. In this case, a line status indicator having a function of displaying the state of a wire line included in the signal by displaying or the like is provided. The fixed telephone network to which the wireless telephone subscriber wishes to connect is provided in the wireless telephone. Means for designating a wired line and means for sending the designation information to the exchange control device through the fixed wireless device at the time of call connection, wherein the exchange control device sends the designation information based on the received designation information A wireless telephone system, wherein the fixed telephone network side wired line to which a wireless telephone is connected is selected by a predetermined procedure. 2. The fixed telephone network side wired line designation information transmitted from the wireless telephone includes information designating one of the fixed telephone network side wired lines irrespective of the line state, and the line state is arriving. The exchange control device may include any one of the following: the fixed line network-side wired line designation information received is one line regardless of the line state. In the case of the information designating the line, responding to the line according to the state of the designated line, making an operation such as calling, connecting the wireless telephone to the line, and designating the line state being incoming. In the case of, one of the incoming lines is selected according to a predetermined procedure, an operation of responding to the selected line is performed, the wireless telephone is connected to the line, and the line state becomes empty. Stuff In the case of the information to be specified, one of the available lines is selected in accordance with a predetermined procedure, a call is made to the selected line, and the wireless telephone is connected to the line. The wireless telephone system according to claim 1, further comprising: 3. The fixed switching unit according to claim 1, wherein the switching control unit divides the fixed telephone network side wired line into a plurality of line groups, assigns a unique line group identification code to each line group, and sets a state of the fixed telephone network side wired line. A signal indicating the line group identification code and transmitting the call through the fixed wireless device through the call connection control wireless transmission path. A means for storing a telephone identification code configured to be able to identify the telephone group is provided for each wireless telephone, and the telephone identification code is included in a call connection control signal transmitted from the wireless telephone to the exchange control device. The switching control device specifies the line group from the wireless telephone identification code, and from the line belonging to the specified line group, The wireless telephone system according to claim 1 or 2, further comprising selecting the fixed telephone network side wired line to be connected to a wireless telephone. 4. The line status indicator displays the status of a wired line included in a signal indicating the status of a fixed telephone network side wired line including the line group identification code corresponding to the identification code given thereto by displaying or the like. The wireless telephone system according to claim 3, further configured as shown. 5. The wireless telephone system according to claim 4, wherein said line status display further comprises a wireless telephone fixed base portion to which said wireless telephone can be attached and detached. 6. The wireless communication system according to claim 4, wherein said line status indicator has a charging function of said wireless telephone.
Wireless telephone system described in 1.