KR100421848B1 - Key Phone System Operation - Google Patents

Abstract

TECHNICAL FIELD The present invention relates to a method of operating a key phone system, and more particularly, to a method of operating a key phone system, which is suitable for providing a user with ease of operation. The operation method of such a keyphone system includes the steps of selecting a CO line or an extension line or a CO line / extension selection code by manipulating a CO line / extension selection code of a key phone, and performing a call forwarding or And performing the call rejection according to the registration of the trunk line / extension.

Description

Key Phone System Operation

The present invention relates to a method of operating a keyphone system, and more particularly, to a method of operating a keyphone system adapted to provide a user with simplicity of operation.

Key phones are also called multi-function key phone systems, or button phones, and have different buttons (for example, 12 to 24) than dials, so that many subscriber lines can be shared by many phones.

The key function of the key phone is to connect an incoming call to an arbitrary extension telephone, to connect a telephone call to another telephone, or to select an empty subscriber line to connect to an exchange.

In addition, calls such as call blocking, CO line reservation, CO line hold and hold, phone number memo, and conference functions, call forwarding, call rejection, broadcast function, emergency call during call, call forwarding, extension function such as extension reservation, etc. In addition, it has a trunk line / extension phone function.

The operation method of the conventional key phone system will be described with reference to the accompanying drawings.

1 is a block diagram of a general key phone system.

As shown in FIG. 1, a general key phone system includes a subscriber processing unit 1 for checking the states of a plurality of subscribers (first to nth subscribers), and a state of the subscribers from the subscriber processing unit 1, or The central control unit 2 for checking the CO line / extension selection mode, etc., the CO line connection unit 3 for detecting whether a ring has occurred from the CO line to the key phone subscriber, and the incoming line selection or extension by receiving an incoming call selection code from the key phone subscriber. A storage unit 4 for storing an incoming or trunk line / extended simultaneous incoming mode, and a digit receiving unit for detecting an incoming selection code or a call rejection code from the storage unit 4 and transmitting it to the central control unit 2 ( 6) and a signal transmitting circuit unit 7 which transmits a ring generation signal to the subscriber via the central control unit 2 when a ring is generated from the trunk line to the subscriber.

In this case, reference numeral 5 denotes a switching unit for switching signals generated from the central control unit 2 and the subscriber processing unit 1.

In a key phone system having such a configuration, a method of selectively specifying a call rejection or a call forwarding from a CO line or an extension is to decide whether to reject a call from a CO line or a call from a station each time a user registers. It is supposed to specify.

2 is a view for explaining a method of selectively designating a call rejection or call forwarding from a trunk line and an extension in a conventional key phone system.

In the conventional key phone system, a method of selectively designating a call rejection or a call forwarding from a trunk line or an extension is as shown in FIG. 2, in which a subscriber first calls his / her phone from an outside (cline subscriber) and an internal (extension subscriber). ) Is called.

Subsequently, when the call is rejected or forwarded, it is forwarded after the Off Hook 100 and the call forwarding code or the extension call rejection code or the call forwarding code and the phone number or extension call forwarding code to be forwarded. Select a phone number. (101)

Then, the switch to On Hook 102.

At this time, the trunk line incoming reject code, the station incoming call rejection code, the trunk line forwarding code and the extension line forwarding code are respectively selected by referring to the keyphone manual or the user memorizes each code number and then selects it.

In the conventional key phone system, there is a problem in the method of selectively designating a call rejection or call forwarding from a trunk line or an extension.

In other words, subscribers (extension subscribers) must remember and register different call forwarding and call forwarding codes according to the type of CO line / extension. There is a problem that the subscriber must remember the call forwarding, busy / non-responsive call forwarding, and external call forwarding codes, and there is a problem in that it is inconvenient to use because the call rejection and call forwarding conditions are complicated according to the trunk line and extension.

An object of the present invention has been made in view of the above-mentioned problems of the prior art, by using the user's own telephone for each subscriber to distinguish the incoming call from the trunk line and the incoming call from the extension to register the call rejection / transfer It is to provide a method of operating a keyphone system that is easy to operate by selecting in advance.

According to an aspect of the present invention for achieving the above object, the step of selecting one of the CO line or the extension line or CO line / extension selection code by operating the CO line / extension selection code of the key phone, call forwarding or rejection of the key phone Manipulating a code to operate the call forwarding or the call rejection according to the registration of the trunk line / extension.

According to the present invention as described above, the user can simply use the call forward / rejection method of the key phone system.

1 is a block diagram of a general key phone system

2 is a view for explaining a method for selectively designating a call rejection or call forwarding from a trunk line and an extension in a conventional key phone system;

3 is a flowchart illustrating a method for selecting a trunk line / extension call mode in the keyphone system of the present invention.

4 is a flowchart for explaining a call rejection registration and call forward registration method in the keyphone system of the present invention;

Explanation of symbols for the main parts of the drawings

1 subscriber processing unit 2 central control unit

3: trunk line connection part 4: memory device part

5: switching unit 6: digit receiving unit

7: signal transmission circuit

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

3 is a flowchart illustrating a method for selecting a trunk line / extension call mode in the keyphone system of the present invention, and FIG. 4 is a flowchart for explaining a call rejection registration and a call forward registration method in the keyphone system of the present invention.

In the present invention, a method for selecting a trunk line / extension call mode in the keyphone system of the present invention distinguishes between a case where a subscriber calls his / her phone from an external (extension subscriber) and an internal (extension subscriber) as shown in FIG. At any time (off hook 200), at any time, a CO line or an extension line or a CO line extension code is selectively selected using a CO line / extension code to register in the storage unit (Fig. 1 (4)) of the keyphone system. .201

That is, the subscriber selects one of the trunk line, the extension line, or the simultaneous line / extension mode.

In this case, the selection as described above registers a mode for call rejection and call forward that can be selectively registered afterwards. If call forward rejection and call forwarding are not registered, there is no effect on the current use state of the user of the phone system. can not do it.

If the call rejection or call forwarding is currently registered, it is determined whether the registration of the function is applied only when the incoming call is made or only when the incoming call is made.

Then switch to on hook 202.

Call forward registration and call forward registration in the keyphone system of the present invention selects the call reject / diversion code of the keyphone system and the telephone number to be forwarded after the off hook 300 as shown in FIG. 4. Depending on the CO line and the station call selection registered at, the call forwarding or call rejection function is performed according to the CO line or the station or CO / EX mode.

At this time, even if the above-mentioned call rejection / transition mode is released, the trunk line / extension call selection mode of the own phone initially selected at the time of rejection and transfer registration will continue to exist.

Then, switch to on hook 302.

The operation method of the keyphone system of the present invention will be described by applying the keyphone system as shown in FIG.

First, when the call from the CO line is described, when the first subscriber selects the incoming / outgoing call according to the method shown in FIG. 3, the digit receiving unit 6 as shown in FIG. 1 receives the incoming selection code from the first subscriber. The storage unit 4 selectively stores either the trunk line incoming mode, the station incoming call mode, or the trunk line / extension simultaneous incoming mode.

At this time, when a ring occurs from the CO line subscriber to the first subscriber of the station, the CO line connection unit 3 detects this and transmits it to the central control unit 2, and the central control unit 2 transmits the state of the first subscriber to the subscriber processing unit ( Inspect through 1).

If the first subscriber is not busy and no call forwarding or call rejection is registered, the ringer 7 sends a ring to the first subscriber using the signal transmission circuit 7.

When the first subscriber registers the call rejection, the digit receiving unit 6 first detects this and puts the subscriber's state into the call rejection state in the storage unit 4.

At this time, when a ring is generated to the first subscriber by the CO line subscriber, the CO line connection unit 3 detects it and transmits it to the central control unit 2, and the central control unit 2 checks the state of the first subscriber from the subscriber processing unit 1. do.

However, since the first subscriber is currently in a call rejection state, the central control unit 2 checks the subscriber line / extension selection mode from the storage unit 4.

As a result of the test, when the subscriber is in the CO line selection mode, the CO line subscriber hears a call rejection tone. In the case of the extension line selection mode, the ring line is sent to the first subscriber using the signal transmission circuit unit 7 to make a call with the CO line subscriber.

In the case of a call from the extension, the call can be made if the first subscriber is in the trunk line selection mode, but the extension subscriber hears a call rejection tone in the extension selection mode.

At this time, if the first subscriber is in the CO / EX simultaneous selection mode, the subscriber who makes the call hears the incoming call rejection.

In the present invention as described above, in the method of operating the keyphone system, since the number plan in the system includes only the CO / IP selection mode designation code, the call rejection code, and the call forwarding code, it is easy to select and change its own mode. It has an easy effect.

Claims (2)

Selecting a trunk line or an extension line or a trunk line / extension selection code by manipulating a trunk line / extension selection code in a first off hook state of the key phone; Setting the keyphone to a first on hook state after the selecting step; Manipulating a call forwarding code in a second off-hook state of the key phone or manipulating a call forward code including a telephone number to be forwarded; And setting the keyphone to a second on hook state after the operation step. The station / extension selection code and the call rejection code or the incoming call code of the extension subscriber when a call is made to an extension subscriber connected to the key phone from a CO line or an extension after the step of setting to the second on hook state. And transmitting a call rejection tone to the call from the trunk line or the station, or transmitting a ring to the subscriber.