KR960003104B1 - Wireless calling devices for keyphone system - Google Patents

Abstract

transmitting a calling signal including an extension number to a radio pager side and checking whether the extension number is dialed in response to the calling signal; if it is checked that the extension number is dialed and applied, connecting an incoming call signal to a keyphone system side by a main control unit; and if not dialed and applied, processing the incoming call as a general call and connecting the processed call to the keyphone system of the extension number.

Description

How to connect incoming call of keyphone system

1 is a block diagram showing the configuration of a key phone system according to the present invention.

FIG. 2A is a flowchart showing a call generation process performed in the main controller shown in FIG.

2b is a flowchart showing a call signal hand signal processing performed by the pager shown in FIG.

FIG. 2C is a flowchart showing a hand signal processing performed by the main controller shown in FIG.

* Explanation of symbols for main parts of the drawings

10: main controller 11: radio transmitter

2 ₁ ~ 2 _n : Key Phone Phone 3 ₁ ~ 3 _n : Wireless Pager

The present invention relates to a key phone system, and in particular, when an extension number of a key phone telephone is set to a paging mode, the extension number is transmitted by transmitting a radio call signal including a unique number corresponding to the extension number to the wireless pager. The present invention relates to an incoming call connection method of a key phone system that allows a user to which a user is assigned a call through other key phone phones.

In general, a key phone system is configured by connecting a plurality of key phone telephones which are assigned a unique extension number to a main control unit line connected to one or more subscriber lines. According to this configuration, for example, when a subscriber of a predetermined extension number is called, when the extension subscriber wants to make a call using a keyphone telephone of another extension number, the subscriber holds the corresponding call signal and then uses the extension telephone keyphone. There was an inconvenience to switch to.

The present invention has been made in view of the above-mentioned point, and when the telephone number of the user is absent, if the corresponding extension number is designated as the paging mode, when the incoming call from the outside calls the wireless pager possessed by the user in the main controller It is an object of the present invention to provide an incoming call connection method of a key phone system in which a call is connected when an extension subscriber dials an extension number assigned to the user using another key phone telephone.

In order to achieve the above object, the present invention transmits a call signal including a received extension number to a wireless pager through a wireless transmitter to notify a subscriber that a call has been received when a call is received in the main control device. In the incoming call connection method of the key phone system for connecting the subscriber to the subscriber, the main controller transmits a call signal including the extension number to the wireless pager side via a wireless transmitter in response to the call signal from the key phone telephone; A first step of confirming whether an extension number of a called keyphone telephone is dialed and applied; and in response to the call signal in the first step, the extension number of the called keyphone telephone dialed is applied from a keyphone telephone. When the main control unit is connected to the key-phone telephone side to which the extension number is applied In the second step of connecting the received call, and in response to the call signal in the first step, if the extension number of the called keyphone telephone is not dialed and authorized from the key phone telephone, the main control unit converts the incoming call into a general call. The present invention provides a method for connecting an incoming call to a key phone system, comprising a third process of processing and connecting the received extension number to a key phone telephone side.

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

As shown in FIG. 1, the key phone system according to the present invention includes a main controller 10, a wireless transmitter 11, a plurality of key phone telephones 2 _{1-2 n} and a plurality of wireless pagers 3 _{1-3 n} . It is provided with. The key phone telephones 2 _{1-2 n} are connected to the main control unit 10 and have individual extension numbers assigned thereto, and transmit and receive call voices through the call path connected by the main control unit 10, and the main control unit 10 side. Has a button for setting a paging mode. The main control device 10 and the key phone telephone trunk line (2 ₁ -2 _n) between the key phone call Lorna telephone (2 ₁ -2 _n), key phone telephone (2 for performing a switching operation between a call to connect a call _1-2 If the paging mode is set by _n ), the corresponding paging mode information is stored for each extension number of the key-phone telephone, and when a call is generated to the key-phone telephone of the corresponding extension that sets the paging mode, the wireless transmitter 11 is controlled After the call signal including the corresponding extension number is transmitted to the pager (3 _{1-3 n} ), the corresponding extension number is dialed and authorized from the key-phone telephone (2 _{1-2 n} ) in response to the call signal. The incoming call path is connected to the keyphone telephone (2 _{1-2 n} ) to which the corresponding extension number is authorized to enable the call. In addition, the wireless transmitter 11 modulates a call signal generated by modulating an extension number received from the main controller 10 into a high frequency signal under the control of the main controller 10 through a plurality of wireless pagers 3 _{1-3. n} ) is sent to the side. Pagers (3 ₁ -3 _n) is each key phone telephone (2 ₁ -2 _n) there is portable by a user, the same number and the extension number for each telephone key phone (2 ₁ -2 _n) is set, the wireless When receiving a call signal including the extension number from the wireless transmitter 11 through the channel, if the corresponding extension number corresponding to its own number generates an alarm to indicate that the user has received an incoming call to his key phone. Inform.

The key phone system of the present invention configured as described above operates as follows.

When the plurality of key phone telephone (2 ₁ -2 _n) of the key phone for example, telephone _(21), the user operates the buttons on the telephone key phone ₍₂₁₎ when emptying their place of setting the paging mode, the main controller (10 ) Stores the paging mode setting information from the key phone 2 ₁ together with the corresponding extension. In this state, when a call to a corresponding extension number is generated from a CO line or an extension, the main control unit 10 does not generate a ring signal to the key phone telephone 2 ₁ of the corresponding extension number without generating a ring signal. The call signal including the corresponding extension number is transmitted to the pager (3 _{1-3 n} ). At this time, the wireless pager 3 ₁ having a unique number corresponding to the corresponding extension number receives a call signal and generates an alarm sound to inform the user that the call to the user's key phone 2 ₁ has occurred. In this case, so that the called party's extension number the call from the trunk or extension on the LCD (Liquid Crystal Display) of the incoming radio pager ₍₃₁₎ may be displayed so that the user can recognize the incoming call. When the alarm is generated in the wireless pager 3 ₁ as described above, when the user dials the extension number of the key-phone telephone 2 ₁ using another key-phone telephone ₂ 2-2 _n located nearby, the main controller ( 10) detects this and makes a call by connecting an incoming call to the keyphone phone ₂ 2-2 _n to which the corresponding extension number is dialed.

Hereinafter, referring to the flowcharts of FIGS. 2A to 2C, for example, a call and a call connection operation in the case where the key phone 2 ₁ is set to the paging mode will be described in more detail.

2A is a flowchart illustrating a call generation process of the main controller, and FIG. 2B is a flowchart illustrating a call signal processing of the portable pager, and FIG. 2C is a flowchart illustrating a process of receiving call processing of the main controller. The main control device 10 in 2a also is set to the determination by (S1), a paging mode, if an incoming call to the key phone telephone ₍₂₁₎ from the trunk or extension key phone telephone ₍₂₁₎ is set to the paging mode If present, through the wireless transmitter 11 transmits a call signal made by high-frequency modulation of the extension number of the corresponding phone phone (2 ₁ ) through the wireless channel (S2), if not set to the paging mode, the phone phone (2 ₁ ) side In step 2b, the wireless pager 3 ₁ checks whether there is a received call signal (S11), and if there is a received call signal, it is included in the call signal. Determine whether the extension number and the unique number assigned to them (S12), and if the unique number is matched to generate an alarm to notify the user that the incoming call to the user's key phone (2 ₁ ) (S13), Locations nearby Use one key phone ₂ 2-2 _n to dial the extension of the key phone 2 ₁ .

In 2c, the main controller 10 determines whether the corresponding extension number received from the key-phone telephone ₂ 2-2 _n is dialed in response to the call signal (S21), and if the extension number is dialed. stopping the operation of the radio transmitter (11) and (S22) to connect the incoming side is an extension telephone dialing key phone telephone ₍₂ 2 -2 _n) so that the user can call through the telephone key phone ₍₂ 2 -2 _n) (S23). Meanwhile, in response to the call signal, the main controller 10 does not dial the corresponding extension number received from the key-phone telephone ₂ 2-2 _n . The incoming call is connected to the key phone 2 ₁ (S24).

According to the present invention, when the key phone is set to the paging mode when the user of the key phone is absent, the main control unit which controls and manages the plurality of key phone phones detects the call signal and transmits the call signal through the wireless transmitter. As the user transmits to his / her own pager, the pager receiving the call signal alerts the user that an incoming call has occurred by alerting the user so that the user can dial the extension using another key phone. When the extension number is dialed by the user, the main controller can connect the incoming call to the keyphone telephone side to which the extension number is dialed so that a quick call can be made. Therefore, the user can receive a call received in his keyphone phone through another keyphone phone connected to the main control device at another place separated from his keyphone phone, thereby improving convenience in using the keyphone system.

Claims (1)

When a call is received in the main control unit, a call signal including the received extension number is transmitted to the pager through the wireless transmitter to notify the subscriber that the call has been received, and the incoming call is connected to the subscriber. In the call connection method, after the main control unit transmits a call signal including the extension number to the wireless pager via a wireless transmitter, the extension number of the call-phone received from the keyphone telephone is dialed in response to the call signal. In the first step of checking whether or not it is authorized, in response to the call signal in the first step, if the extension number of the called keyphone telephone is dialed and applied from the keyphone telephone, the main control unit receives the extension number. A second process of connecting the incoming call to a key phone telephone, and the first process In response to the call signal, if the extension number of the called keyphone telephone is not dialed and authorized from the keyphone telephone, the main control unit treats the incoming call as a general call and connects it to the keyphone telephone side of the received extension number. Incoming call connection method of a key phone system comprising the three steps.