JP3711696B2 - Communication terminal device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a communication terminal apparatus such as a facsimile apparatus that includes, for example, a cordless slave unit and is capable of making an extension call between the master unit and the slave unit.
[0002]
[Prior art]
In the case of a conventional facsimile machine equipped with a slave unit, an extension call can be made between the master unit and the slave unit. In such a facsimile apparatus, in general, the bell ringing pattern for an extension call is different from the ringing pattern for an incoming call, thereby enabling discrimination between the incoming call and the extension call.
[0003]
[Problems to be solved by the invention]
By the way, in the facsimile apparatus as described above, when there is an incoming call while the extension call of the slave unit from the master unit, the user using the handset of the master unit notices the incoming call by the ringing of the bell. When the handset is on-hooked and then off-hooked to respond to an incoming line call, the bell sound of the extension call on the handset side is cut off. However, the user on the handset side does not know the reason why the bell ringing of the extension call was cut off.
[0004]
On the other hand, if there is an outside line call while the extension call of the master unit from the slave unit, the bell continues to ring according to the ring pattern of the extension call at the master unit that is called the extension line. Similarly, the user of the slave unit that is calling the extension of the master unit cannot know the incoming call of the outside line. Therefore, the incoming call from the slave unit during the extension call of the master unit is left unanswered. In addition, if the user of the parent device responds to the extension call from the child device by off-hooking the handset without noticing the incoming call, an inconvenience of being connected to the outside line occurs.
[0005]
The present invention has been made to solve such a problem, and when there is an incoming call during the extension call between the master unit and the slave unit, the ringing pattern of the bell is set as the case of the extension call. By changing to a different pattern, it is possible to quickly answer an incoming call without leaving the incoming call unattended, and like a facsimile machine that makes it possible to determine that an incoming call has occurred during an internal call An object of the present invention is to provide a secure communication terminal device.
[0006]
[Means for Solving the Problems]
According to a first aspect of the present invention, there is provided a communication terminal device capable of making an extension call between a master unit and a slave unit, a means for detecting an incoming call during an extension call from the master unit to the slave unit, when detecting the external incoming call while the extension call to the slave unit, that a means for sending from the master unit to the slave unit an instruction to change the ringing pattern of the handset to the case with a different pattern of extension calls It is characterized by.
[0007]
When the communication terminal device of the first invention detects an incoming call during an extension call from the master unit to the slave unit, an instruction to change the bell ringing pattern of the slave unit to a pattern different from the case of the extension call is issued from the master unit to the slave unit. To the machine . As a result, the user on the handset side can know that the extension call has been interrupted due to an incoming call during the extension call.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a block diagram showing a configuration of a facsimile apparatus according to the present invention.
Cordless phone (CLP: Cord-Less Phone) base unit 1 receives radio waves from handset 2 and outputs them to the main unit (hereinafter referred to as FAX side). 2 to send. In addition to the push button dial, an extension key for calling the extension unit 2 is provided on the FAX side.
[0013]
In addition to the push-on button dial, the handset 2 is provided with an extension key for making an extension call to the master unit 1 and an outside line key for making an outside line call or receiving an outside line, and a microphone and a speaker for sending and receiving calls. In addition, a speaker for notifying an extension call or an incoming call is provided on the back surface thereof, and a ringer that rings a bell with an incoming call ring pattern or an external call pattern different from the internal call pattern. A generation circuit (not shown) is incorporated.
[0014]
CLP I / F (interface) 3 has ICM ports such as ITCM1 indicating that an extension call is made from FAX to CLP and ITCM2 indicating that an extension call is made from CLP to FAX. Controls input / output of signals to / from CPU 4. An NCU (Network Control Unit) 5 controls the data to pass through the exchange by connecting the facsimile machine and an external line.
[0015]
The CPU 4 on the FAX side controls communication by controlling the operation of each part of the apparatus. For example, in the case of an extension call from the slave unit 2, the ringer is generated when the ringer generation circuit 11 is controlled to ring a bell with the ringing pattern of the extension call and an incoming call is detected during the extension call of the master unit 1. The circuit 11 is controlled to change to the ringing pattern of the incoming line call, and the bell is ringed, and whether the extension call is from the handset 2 or from the FAX side, or the external line call during the extension call is in the handset 2 ON / OFF of the analog switch of the signal switching circuit 12 is controlled according to whether it is on the FAX side or the like.
[0016]
The monitor speaker 10 on the FAX side outputs a bell sound generated by the ringer generating circuit 11 when an extension call is received from the handset 2 or when an external call is received. The ringer generation circuit 11 is controlled to ring a bell with an outside line ringing pattern or an outside line ringing pattern different from the extension line ringing pattern or the extension line ringing pattern under the control of the CPU 4 to be described later.
[0017]
The signal switching circuit 12 outputs the bell signal generated by the ringer generating circuit 11 to the NCU 5 for the voice signal from the handset 13 on the main unit 1 or FAX side to the NCU 5, the voice signal from the outer line to the base unit 1 or the handset 13. It is composed of various analog switches for passing to the monitor speaker 10 and the like, and its on / off is controlled by the CPU 4.
[0018]
Next, the operation of the facsimile apparatus according to the present invention will be described with reference to the flowcharts of FIGS.
First, the operation at the time of extension call from the parent device to the child device will be described with reference to FIG. 2 and FIG.
When the extension key on the FAX side is turned on (step S1), the CPU 4 switches the analog switch of the signal switching circuit to a state in which an extension call from the main unit 1 to the sub unit 2 is possible (step S2), and CLP I / The F3 I / F port ITCM1 is turned on (step S3).
[0019]
When the I / F port ITCM1 is turned on, the PCB (Process Control Block) of the CLP master unit 1 recognizes that it is an extension call to the slave unit 2 (step S4), and the extension to the cordless slave unit 2 Notify that the call is in progress (step S5).
The handset 2 that has received the extension call notification from the base unit 1 rings the bell in the extension call ringing pattern (step S6).
[0020]
While calling the extension 2 of the slave unit 2, the CPU 4 monitors the extension of the slave unit 2 while monitoring whether there is an incoming call and whether the extension key of the slave unit 2 is turned on (steps S7 and S8). When the key is pressed, the extension call from the master unit 1 to the slave unit 2 is enabled (step S9).
On the other hand, when an incoming call is detected during the extension call of the handset 2 (step S7), the CPU controls the ringer generation circuit 11 to ring the FAX side bell with the ringing pattern of the incoming call (step S10). ).
[0021]
The CPU 4 notifies the master unit 1 of an incoming call (step S11) and instructs the slave unit 2 to change the bell ringing pattern via the master unit 1 (step S12). The handset 2 instructed to change the bell ringing pattern changes from the ringing ringing ringing pattern to the ringing ringing ringing pattern (step S13).
[0022]
While the ringing pattern of the incoming call is ringing, the CPU 4 causes the handset 13 on the FAX side to be once on-hooked, whether or not the external line key of the handset 2 is turned on. It is monitored whether or not it is off-hook again (steps S14 and S18). If the external line key of the slave unit 2 is turned on, the bell ringing of the slave unit 2 is stopped (step S15) and the bell ringing on the FAX side is also stopped. The terminal is stopped (step S16), and the outside line call is enabled in the handset 2 (step S17).
[0023]
On the other hand, if the handset 13 on the fax side is once on-hooked and off-hooked again while the bells of the main unit 1 and the handset 2 are ringing with the ringing pattern of the incoming line call, the CPU 4 will ring the bell on the fax side. At the same time as stopping (step S19), the ringing of the bell of the handset 2 is also stopped (step S20), and an outside line call is enabled by the handset 13 on the FAX side (step S17).
[0024]
Next, the operation at the time of extension call from the slave unit to the master unit will be described with reference to FIG. 4 and FIG.
When the extension key of the slave unit 2 is turned on (step S21), extension key ON information is sent from the slave unit 2 to the PCB of the CLP master unit 1 (step S22). In the CPU 4, the I / F port ITCM2 of the CLP I / F 3 is turned on (step S23), and the analog switch of the signal switching circuit 12 is switched to a state in which an extension call from the slave unit 2 to the master unit 1 is possible (step S24). ). The CPU 4 controls the ringer generation circuit 11 to ring the FAX-side bell with the ringing ringing ringing pattern (step S25).
[0025]
While the fax side bell rings in the ringing ringing pattern, the CPU 4 monitors whether there is an incoming call and whether or not the fax handset 13 is off-hook (steps S26 and S27). When the handset 13 on the FAX side is off-hooked (step S27), the CPU 4 enables an extension call from the slave unit 2 to the master unit 1 (step S28).
[0026]
When the incoming call is detected while the FAX-side bell is ringing in the extension ringing ringing pattern (step S26), the CPU 4 changes the ringing pattern on the FAX side from the extension calling to the outside calling pattern (step S26). Step S29). Subsequently, the bell ringing of the handset 2 is started with an outside line incoming call pattern (step S30).
[0027]
While the bell on the FAX side and the bell on the handset 2 are ringing in the ringing pattern for incoming calls, the CPU 4 determines whether or not the handset 13 on the FAX side is off-hooked and the key on the handset 2 is turned on. Whether or not the handset 13 is off-hooked (step S31), the bell ringing on the FAX side is stopped (step S33), and the bell ringing of the slave unit 2 is also stopped (step S31). Step S34), enabling an outside line call with the handset 13 on the FAX side (Step S35).
Similarly, when the outside key of the handset 2 is turned on (step S32), the bell ringing on the FAX side is stopped (step S33), and the bell ringing of the handset 2 is also stopped (step S34). 2 enables an outside line call (step S35).
[0028]
【The invention's effect】
When the communication terminal device of the first invention detects an incoming call during an extension call from the master unit to the slave unit, an instruction to change the bell ringing pattern of the slave unit to a pattern different from the case of the extension call is issued from the master unit to the slave unit. since sent to machine, the user of the slave unit is an excellent effect that it is possible to know that the extension call is cut off because there is external incoming call while the extension call.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of a facsimile apparatus according to the present invention.
FIG. 2 is a flowchart of an operation (master unit → slave unit) at the time of extension call of the facsimile apparatus according to the present invention;
FIG. 3 is a flowchart of the operation of the facsimile apparatus according to the present invention when an extension is called (master unit → slave unit).
FIG. 4 is a flowchart of the operation of the facsimile apparatus according to the present invention when an extension is called (child device → parent device).
FIG. 5 is a flowchart of the operation of the facsimile apparatus according to the present invention when an extension is called (child device → main device).
[Explanation of symbols]
1 Master 2 Slave 4 CPU
10 Monitor speaker
11 Ringer generation circuit
12 Signal switching circuit
13 Handset

Claims (1)

  In a communication terminal device capable of making an extension call between a master unit and a slave unit, means for detecting an incoming call during an extension call from the master unit to the slave unit, and during an extension call from the master unit to the slave unit A communication terminal apparatus comprising: means for sending an instruction for changing a bell ringing pattern of a slave unit to a pattern different from that in the case of an extension call when an incoming call is detected from the master unit to the slave unit.

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