JPH0215766A - Line connecting system - Google Patents

Abstract

PURPOSE:To improve the operability of the title system by inputting the registering operation from a calling extension line when a called extension line is busy after judging the state of the called line when the calling line makes a call to the called line and, if input information is on-hook information, notifying the calling line of the termination of the busy state of the called line and connecting both lines. CONSTITUTION:Upon inputting off-hook information from an extension telephone set 1a, a central controlling section 7 checks the state of an opposite telephone set 1b and, when the telephone set 1b is busy, waits for the input information from the calling side telephone set 1a. If the input dial information indicates a special extension camp on number, the section 7 checks the terminal of the speak of the telephone set 1b from on-hook information and, when the telephone set 1b is in the off-hook state, performs a service terminating process. After performing the process, the section 7 connects the telephone set 1b with a ringing tone (RGT) 6 through a switch network 2 and notifies the telephone set 1a of the termination of the busy state of the telephone set 1b by connecting the telephone set 1a making an extension camp-on registering operation with a ring back tone(RBT) 5.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a line connection system, such as a private branch exchange (hereinafter referred to as PBX) and a key telephone system (hereinafter referred to as KTS).
This relates to a line connection method for devices having a line switching function such as.

[Conventional technology] Conventionally, as a service function of devices such as PBX and KTS,
There is a service function called extension camp-on. This service feature is used when making an extension call when the caller takes the phone off-hook and dials the extension number of the other party.
If the other party's extension is busy, this function notifies the caller that the other party's call has ended and calls the other party's extension again.

An example of the registration operation for this extension camp-on function will be described below.

When the extension telephone is taken off-hook and the other party's extension number is dialed, if the other party's extension is busy, the device sends a busy tone (B T + Busy one) to the calling extension.

When the caller hears this BT from the handset, the caller dials the extension camp-on service special number, sounds a confirmation tone indicating that the registration from the device is completed, and goes on-hook. Then, when the extension that was busy goes on-hook, the device calls the extension registered with Camp On, and when the caller goes off-hook with the ring tone, a ring tone (RG T : Rinsing Tone) is output. Meanwhile, the caller receives a ringing tone (RBT:
Ring BackTone) is passed, and if the other party's extension responds, the call state changes to the talking state by 8 lines.

[Problems to be Solved by the Invention] However, in the conventional example described above, a series of camp-on registration operations takes several seconds, and there are the following problems.

(1) Even if the other party's extension goes on-hook during registration, if the other party's extension goes off-hook to make a call before registration is completed, the registrant is forced to wait until the end of the call.

(2) Even if the other party's extension goes on-hook during registration, if the other party's extension receives a call from another extension before registration is completed, the registrant is forced to wait until the end of the call.

(3) Even if the other party's extension goes on-hook during registration, the caller must perform a series of registration operations and wait until the caller hears a ring tone.

The present invention was made to solve the above problems, and
When making an extension call, if the other party's extension is busy, a 5181 operation from the calling party's extension notifies the calling party's extension that the other party's extension has gone on-hook, and if the other party's extension goes on-hook during the registration operation, The purpose of the present invention is to provide a line connection method that notifies an extension that is currently being registered that the other party's extension is ringing.

[Means for Solving the Problem] In order to achieve the above object, the line connection method of the present invention has the following features:
In a line connection system of a device having a line switching function, when an extension call is made, the status of the called extension is determined, and if the called extension is busy, a registration operation is input from the calling extension; 1% tiThe input information from the called extension is judged while inputting the work, and if the input information is on-hook information, the calling extension is notified of the end of the called extension, and the calling extension and the called extension are connected. The outline is to connect the called extension.

[Embodiments] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

[Description of the Apparatus (Fig. 1)] Fig. 1 is a block diagram of the apparatus configuration in this embodiment. In the figure, 1 is an extension telephone, 2 is a switch network, 3 is a trunk (TRK), and 4 is a busy tone ( BT) sound source, 5 is a ringback tone (RBT) sound source, 6 is a ringing tone (RGT) sound source, 7 is a confirmation tone (CT) sound source,
8 is a central control unit (CC), and 9 is a memory unit (MM).

The central control unit 8 in this embodiment includes a CPU that controls the entire loading box and a ROM that stores the processing procedures of the CPU. It consists of a table, etc. that stores the calling extension number and the other party's extension number. Further, each extension telephone 1 has a button ffi 3A that outputs hook information and dial information to the CC 8 separately from voice. and,
Each of the sound sources 4 to 7 is connected to the switch network 2 under the control of the central control unit 8, and outputs to the connected extension telephone 1 in order to notify the authorized state. For example, when an incoming call is received via a public network, the TRK3 detects the incoming call and outputs an incoming signal to the CC8. With this incoming signal, CC8 sends RG
T6 and the extension telephone corresponding to the incoming call TRK3 are connected through the switch network 2. And extension telephone 1 is RGT
It rings with the ringing tone from 6.

[Description of Processing Procedures (FIG. 2)] Next, the processing from the registration processing of the extension camp-on function to the telephone call in this embodiment will be described below with reference to the flowchart of FIG. 2.

First, the extension telephone connected to extension number "1" is designated as 1a, the extension telephone connected to extension number °゛2°° as 1b, and the extension telephone connected to extension number "3" as 1c. Assume that when the number "2" is dialed, a call is being made between the extension telephone 1b and the extension telephone lc.

In step 510, the central control unit 7
When the off footer information from a is input, step S12
Proceed with the process and input the extension number "2" that will be input next. Then, in step S14, the state of the other party's extension telephone 1b corresponding to the input extension number "2" is checked, and if it is busy, the process waits for input information from the calling party's extension telephone 1a in step S16. If the on-hook information is not to be terminated, it is determined in step 318 whether it is an extension camp-on special number for executing the extension camp-on function W8'J.If the input dial information is not an extension camp-on special number, the process is performed in step S16. , and if it is an extension camp-on special number, check whether the call on the other party's extension telephone !b has been terminated using the on-hook information in step S20.If the call has not yet been terminated, step S28
Proceed to the process and continue the extension camp-on registration operation.

However, if the other party's extension telephone 1b is an off-footer, the switch network 2 is released and the call termination process is performed in step S22. Next, in step S24, the other party's extension telephone i
b and the RGT 6 are connected via the switch network 2, and in step S26, the extension telephone 1a which is undergoing an extension camp-on registration operation is connected to the RBT 5, and the end of the call of the other party's extension telephone 1b is notified. Then, in step S40, the response of the calling party's extension telephone 1b is determined based on the off-hook information, and if there is a response, in step S42, a connection release between the party's extension telephone 1b and the RGT 6 is output to the switch network 2, and similarly. , in step S44, the extension telephone 1a
and outputs connection release with RBT5. Next, step S
At step 46, the extension call connection is output to the switch network 2, and eight lines are displayed to indicate the call status between the extension telephone 1a and the extension telephone 1b.

Therefore, when on-hook of the other party's extension is detected even during the extension camp-on registration operation, the caller who is performing the extension camp-on registration operation is informed that the other party's extension has gone on-hook, and the extension line conversation state can be established for eight lines.

On the other hand, if it is determined in step S20 that the call on the other party's extension telephone 1b is not terminated, it is checked in step 528 whether the end of the extension camp-on'M&&P3 work has been input, and if it is not terminated, the input dial information is stored in MM9. , returns the process to step S20 to continue the registration operation.

However, if the end of registration is input in step 528, the extension camp-on registration process is performed in step S30, and in step S32, extension telephone 1
The switch network 2 and the extension telephone 1a are connected in order to output a confirmation tone (CT) 9 to the terminal a. Then, step S34
Waits for on-hook information to end the WT'S operation, and if it is on-hook information, a confirmation sound connection release is output to the switch network 2 in step S36, and the extension camp-on registration operation is ended.

In this example, the extension camp-on dial special number
Although the settings are made here, they may also be set using function keys that have the same meaning.

Furthermore, when the other party's extension goes on-hook to the calling party during the registration operation, the registration operation may be interrupted and the caller may be notified by a special tone, talkie, etc. in addition to RBT to notify that the other party's extension is being called.

Furthermore, in addition to sound, the extension telephone is equipped with a display device,
Visual notification may also be considered.

According to this embodiment, if the other party's extension goes on-hook even during a camp-on registration operation, that extension is already called, and an RBT is sent instead of a confirmation tone to the extension that is currently being registered, so that the caller can register. It is possible to interrupt the operation and know that the other party's extension has been connected, which has the effect of improving operability.

[Effects of the Invention] As explained above, in a line connection system of a device having a line switching function, the state of the called extension is determined when an extension call is made, and if the called extension is busy, the call is made. A registration operation is input from the calling extension, and during the input of the registration operation, input information from the called extension is determined, and if the input information is on-hook information, the calling extension is notified of the end of the called extension. By notifying and connecting the calling extension and the called extension, a quick extension call becomes possible.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of the device configuration in this embodiment, and FIG. 2 is a flowchart showing the operating procedure in this embodiment. In the figure, 1... extension telephone, 2... switch network, 3...
...Trunk, 4...Busy tone sound source, 5...
Sound source of ringback tone, 6... Sound source of ringing tone, 7... Sound source of confirmation sound, 8... Central control unit,
9...Memory section.

Claims (1)

[Claims] In a line connection system of a device having a line switching function, when an extension call is made, the status of the called extension is determined, and if the called extension is busy, a registration operation is input from the calling extension; During the input of the registration operation, the input information from the called extension is judged, and if the input information is on-hook information, the calling extension is notified of the end of the called extension, and the calling extension and the called extension are connected. A line connection method characterized by connecting.