KR0141259B1 - Method for exclusively holdinot in a keyphone system - Google Patents

Abstract

The present invention relates to a method for holding a score in a key phone system. To this end, a call is held by using a hold key provided in each key phone in the key phone system for a while and then released again using a release key provided in each key phone. A method of holding a call, wherein the call is in a state of being in a call and is switched to a hold mode which can be released from another keyphone according to a user's hold key operation of the respective keyphones: A process of switching to an exclusive hold mode that can be released only in the corresponding key phone which has been switched back to the hold mode by using the second key: In the hold mode, a process of releasing a hold mode using the respective release keys to resume a call: in the exclusive hold mode The corresponding phone which has switched to the hold mode releases the exclusive hold mode by using the release key. Provided is an exclusive hold method in a key phone system including the step of performing a call again.

Description

Exclusive Hold Method in Keyphone Systems

1 is a schematic block diagram of a keyphone system for explaining an exclusive hold method according to the present invention.

2 is a flow chart illustrating an exclusive hold process in a key phone system according to a preferred embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

05: Main unit 10: Key phone

11: transmitting and receiving unit 12: key input unit

13: Micom 14: Display

15: signal conversion section 16: telephone call circuit section

17: Handset 20: Other Key Phone

The present terminology relates to a hold method in a key phone system, and more particularly, to a monopoly hold method in a key phone system in which a call can be released by holding only a corresponding key phone held during a call.

In general, the hold function of the key phone system uses the corresponding CO line to temporarily change the call state to a hold state and change the lamp of the key phone corresponding to the CO line held by the other party in order to change the call to the desired person during the call. On, it indicates that the call is on hold, and the person who wants to talk to the call using the held keyphone or another keyphone can resume the call by releasing the hold state.

In addition, when the user wants to answer an external call of another CO line in a call, the relevant CO line is put on hold, the external CO line of the other CO line is received, the call is made, and the previous CO line is held again. You can release the call and hold it.

As described above, the hold function puts the corresponding CO line in a call into a hold state, and the held key phone is a very useful function in a key phone system capable of performing other functions.

However, in the conventional typical key phone system, in addition to the corresponding key phone held at the time of performing the above hold function, the user can release the call from another key phone so that the user can hold another important phone call when the user puts a personal important call on hold. There was also a need for an exclusive hold that prevented the release of the hold.

Accordingly, an object of the present invention is to provide an exclusive hold method in a key phone system, which is designed to meet the necessity as described above, and enables the release of a hold only with a key phone held when the hold function is performed in the key phone system. have

In order to achieve the above object, the present invention uses a hold key provided in each key phone in the key phone system to temporarily hold a phone call and then can hold the call again using a release key provided in each key phone. The process of switching to a hold mode that can be released from another phone according to the method: a process of switching to an exclusive hold mode that can only be released from the corresponding key phone which has been switched to the hold mode by using the hold key of the corresponding key phone which has been switched to the hold mode: The process of resuming the call by releasing the hold mode by using the respective release keys in the hold mode: Resumes the call by releasing the exclusive hold mode by using the release key of the corresponding key phone which has switched from the exclusive hold mode to the hold mode. It provides a monopoly withholding method in the key phone system including the step of performing.

Other objects and various advantages of the present invention will become more apparent from the preferred embodiments of the present invention described below with reference to the accompanying drawings by those skilled in the art.

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

1 is a schematic block diagram of a keyphone system for explaining the exclusive hold method according to the present invention.

As shown in the figure, the key phone system includes a main device 05, key phones 10 and 20, a transmission and reception unit 11, a key input unit 12, a microcomputer 13, a display unit 14, and a signal conversion unit 15. ), A telephone call circuit section 16, a handset section 17, and the like.

In the figure, the main device 05 selectively controls the connection of the trunk line or the extension line of the key phone, and holds the corresponding trunk line in accordance with the hold control signal from the microcomputer 13, and controls to display the suspended trunk line. Output the signal to each keyphone.

In addition, the main device 05 switches the trunk line to an exclusive hold state where other key-phone users cannot make a call based on the exclusive hold control signal from the microcomputer 13, and responds to the release control signal from the microcomputer 13. Connect the phone line with the phone line requested to be released and the phone line requested for release.

In addition, the key phones 10 and 20 are dedicated terminals of the key phone system, and the transceiver 11 is configured to synthesize and modulate three channels (Voice, Data, Control) digital signals between the main device 05 and the key phone 10. Means.

In addition, the key input unit 12 outputs a key signal resulting from the user's operation in order to perform a desired operation of the key phone, and in particular, has a holding key for holding the call and a release key for releasing the call. do.

On the other hand, the microcomputer 13 controls the overall operation of the key phone based on the key signal from the key input unit 12 and the control signal from the main device 05 of the key phone system, and corresponds to the held key from the key input unit 12. When a key signal to be inputted is inputted, a holding control signal for switching the current trunk line to the holding state is output to the main device 05, and a display control signal for informing the holding state is output to the display unit 14.

In addition, when the release key signal for releasing the hold is input from the key input unit 12, the microcomputer 13 outputs a release control signal to the main unit 05 and a display control signal for informing the release state to the display unit 14. do.

The display unit 14 selectively turns on / off the lamp corresponding to the reserved trunk line, the incoming call display lamp, and the busy display lamp based on the display control signal from the microcomputer 13.

In addition, the signal converter 15 converts the digital voice signal from the transmitter / receiver 11 into an analog voice signal and outputs the analog voice signal to the telephone call circuit unit 16. On the contrary, the digital voice signal from the telephone call circuit unit 16 is converted into a digital voice signal. The signal is converted into a signal and output to the transceiver 11.

On the other hand, the telephone call circuit section 16 forms a loop of the key phone to amplify the analog voice signal.

Finally, the handset 17 is divided into a handset and a handset, and converts the user's voice into an analog voice signal through the handset and outputs it to the telephone call circuit section 16, and vice versa from the telephone call circuit section 16. The analog voice signal is converted into voice and output to the user.

Next, the exclusive holding process in the key phone system according to the preferred embodiment of the present invention in the key phone system employed according to the present invention including the above-described configuration will be described in detail with reference to FIGS. 1 and 2.

First, in the case of talking with the other party through the external trunk line (step 200), if the user manipulates the hold key of the key input unit 12, the microcomputer 13 determines this (step 202).

That is, when the holding key signal is input, the holding control signal for switching the current trunk line to the holding state is applied to the main device 05, and the display control signal for informing the holding state is applied to the display unit 14.

At this time, the main device 05 holds the corresponding trunk line on the basis of the hold control signal from the microcomputer 13, and outputs a control signal for displaying the held trunk line to each key phone to switch to the hold state (step 204). ).

Next, the microcomputer 13 determines whether or not the phone held by the above user is the only important phone, so that only the user releases the hold key of the key input unit 12 so that only the user can release and resume the call. Detect (step 206).

At this time, when the hold key signal is input, the microcomputer 13 applies an exclusive hold control signal for exclusive hold to the main device 05, and the main device 05 releases the hold display of other phones except for the corresponding key phone 10. In this case, the call is released from the other key phones so that the user cannot release the call (step 212).

On the other hand, in the exclusive hold state by the step 212 detects whether the release key signal for the release of the exclusively held CO line is input (step 214), and if input, the microcomputer 13 transmits the exclusive release control signal to the main device ( 05), the main unit 05 connects the corresponding CO line, which is held in monopoly, with the call channel of the keyphone to be monopolized, to resume the call (step 216).

On the other hand, in step 206, if there is no input of the hold key signal, it is detected whether a release key signal for releasing the reserved trunk line is input (step 208), and when inputted, the microcomputer 13 generates a release control signal. The main device 05, which is applied to the main device 05, releases the corresponding trunk line to be held and connects the call charge to the key phone which requested the release of the hold, thereby allowing the call to resume (step 210).

As described above, according to the present invention, it is possible to provide a safer hold function to the user by adding an exclusive hold function such that the hold function in the key phone system can be released only in the key phone which holds the user's important call.

Claims (1)

In a keying system, a call is held by using a hold key provided in each keyphone for a while, and then a call is held again by using a release key provided in each keyphone. A process of switching to a hold mode that can be released from another key phone according to a hold key operation of each key phone: using the hold key of the corresponding key phone which has been switched to a hold mode, and switching to the hold mode which can be released only from the corresponding key phone. Switching process: Release the hold mode by using each release key in the hold mode to perform the call again: Release the exclusive hold mode by transferring the release key of the corresponding key phone which has been switched from the exclusive hold mode to the fraud hold mode Exclusive hold method in a keyphone system, comprising the step of re-calling the call.