KR100188876B1 - Multi-call processing method for mobile telephone - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile communication terminal, and more particularly, to a multiple call processing method of a mobile communication terminal that is automatically connected to another call when disconnecting one call that is being connected in a multiple call connection.

In the conventional mobile communication terminal, there is an inconvenience in that the user can make a call only by searching for the menu mode of the input unit several times in order to select a function of the terminal.

According to the present invention, when disconnecting one call that is connected in multiple call connection, it connects another call automatically held by the call sequence so that the user does not need to search the menu mode several times for the function selection to provide convenience to the user. can do.

Description

Multi-call processing method of mobile communication terminal

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile communication terminal, and more particularly, to a multiple call processing method of a mobile communication terminal that is automatically connected to another call when disconnecting one call that is being connected in a multiple call connection.

In general, the Global System for Mobile Communication (GSM) is a standard for pan-European cellular mobile telephone systems that is incompatible with existing analogue methods and focuses on interoperability with the Integrated Services Digital Network (ISDN). It is based on mobile cell phone service designed to communicate freely. However, the cost of installing the basic facilities is low, the terminal is cheaper than analog, the SIM card is used, the encryption is possible, and the user between the terminal and the terminal (Point-to-Point) on the control channel is desired. SMS (Short Message Service), which can transmit 160 characters of text, has data and fax functions, and the reliability of the base station is 5 times higher than that of the existing analog system, and the capacity can be expanded. It is used in many countries.

In the technical standard of GSM, the base station transmission frequency is 935 to 960 (MHz), the base station reception frequency is 890 to 915 (MHz), and the transmission / reception frequency interval is 45 (MHz), and an RF duplex channel The number is 124 channels, the cell radius is about 0.5 ~ 35 (Km), and the transmission speed is 270.833 (Kbps). On the other hand, mobile communication consists of small cells in areas with high demand, such as development areas, and large cells in rural and urban areas, and covers the entire area. It is possible to use mobile phones, fax machines, and laptop computers without using modems. In addition, the mobile data service can be directly connected to the teletext terminal, and further research is being conducted for the state-of-the-art service to the digital mobile phone service.

However, a general mobile communication terminal, as shown in Figure 1, and the CPU 11 for controlling the entire system, and the duplexer 12 for transmitting and receiving messages, such as voice when forming a message and a call of the control channel through the antenna and A receiving unit 13 for receiving and processing a call signal and a call message applied from the duplexer 12, a transmitting unit 14 for transmitting and receiving a call signal and a call message applied from the CPU 11, a receiving unit 13, and A frequency synthesizing unit 15 for generating a signal during the reception / transmission process of the transmitting unit 14, a memory unit 16 storing an operation program, processing data, and a telephone number, an operating state and a telephone of a mobile communication terminal; An input unit 19 including a display unit 17 for displaying a number, a voice processing unit 18 for processing a signal applied from the CPU 11 and outputting the same through a speaker, and a button for implementing various functions. ) It was made to include.

The operation of the mobile communication terminal configured as described above will be described as follows.

First, when another call is made while the user's call is in an active state, that is, currently in a call state, the call unit receives a call waiting message from the network through the receiving unit 13 to display the call unit. (17).

At this time, when the user presses the Send key of the input unit 19, the CPU 11 detects this and controls the call path to be connected to the second call, and in this state, the first call is not disconnected but is held. Control to stay in state.

Thereafter, when the user ends the call with the other party of the second call and presses the End key of the input unit 19, the CPU 11 detects this and disconnects the second call. When the user searches for the call retrieve function in the menu mode of the input unit 19, the CPU 11 detects this and connects the call path to the first call held. In this way, the signal is received through the receiving unit 13, and the voice processing unit 18 processes the voice and transmits it through the speaker to continue the call.

As described above, in the conventional mobile communication terminal, there is an inconvenience in that the user can make a call only by searching for the menu mode of the input unit several times in order to select a function of the terminal.

In order to solve the above problems, the multiple call processing method of the mobile communication terminal according to the present invention automatically connects to another call when disconnecting one call in the multiple call connection. There is no need to find it, so it aims to provide convenience to the user.

Multiple call processing method of a mobile communication terminal according to the present invention for achieving the above object; A first step of displaying a call waiting and confirming input of a send key when there is a call request from the other party in a state of being in a call with the other party; A second step of, if the send key is not input, keeps the second call of the other party in a hold state and simultaneously stores the second call in the next call order and continues to talk with the other party; A third step of, when the send key is input, keeps the first call of the other party in a hold state and stores the next call in the next call order, and connects the second call to the other party; A fourth step of disconnecting a corresponding call end by checking an input of an end key after ending the call; And a fifth process of reading the next call sequence and connecting the held call corresponding to the call sequence.

1 is a block diagram showing the configuration of a general mobile communication terminal.

2 is a flowchart illustrating a multiple call processing method of a mobile communication terminal according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

11: CPU 12: duplexer

13 receiver 14 transmitter

15: frequency synthesis section 16: memory section

17 display unit 18 voice processing unit

19: input unit

The configuration of the mobile communication terminal according to the embodiment of the present invention is the same as in the related art, but the program of the software is changed so that the multiple access can be automatically connected to the call paths in order.

A multiple call processing method of a mobile communication terminal according to an embodiment of the present invention will be described with reference to the flowchart of FIG. 2 as follows.

First, when the other party is making a call while the user is currently in a call with the other party, a message of call waiting is applied from the network through the receiving unit and displayed on the display unit (step S1).

At this time, the CPU checks whether the send key of the input unit is input by the user (step S2), and if it is not input, the second call, which is the call of the other party, stays in the held state (step S3). The call order, which is the order of calling the first priority, is stored in the memory unit (step S4), and the call is connected to the first call, which is the call of the other party, to continue the call with the other party (step S5).

If it is input, the CPU detects the send key and holds the first call in the hold state (step S6), stores it in memory in the order of the next call (step S7), and connects the call to the second call. The control is connected to the second call (step S8), the signal is received through the receiving unit, and the voice processing unit transmits the voice through the speaker to make a call (step S9).

Thereafter, when the user ends the call with the other party of the first call or ends the call with the other party of the second call and presses the end key of the input unit, the CPU confirms the input of the corresponding end key (step S10) to continue the call. While disconnecting the call that has ended, i.e., disconnecting the call path that terminated the call (step S11), and reading the call sequence stored in the memory unit (step S12) to the held call corresponding to the next call sequence of the first order Is connected to make a call connection (step S13).

In this way, the signal is received from the call path of the held call through the receiver, and the voice processor processes the voice and transmits it through the speaker (step S14).

As described above, according to the present invention, when disconnecting one call that is being connected in a multiple call connection, the user does not need to find the menu mode several times to select a function by automatically connecting another call held by the call sequence. It can provide convenience.

Claims (1)

A method for processing multiple calls in a mobile communication terminal; A first step of displaying a call waiting and confirming input of a send key when there is a call request from the other party in a state of being in a call with the other party; A second step of, if the send key is not input, keeps the second call of the other party in a hold state and simultaneously stores the second call in the next call order and continues to talk with the other party; A third step of, when the send key is input, keeps the first call of the other party in a hold state and stores the next call in the next call order, and connects the second call to the other party; A fourth step of disconnecting a corresponding call end by checking an input of an end key after ending the call; And a fifth process of reading the next call sequence and connecting the held call corresponding to the call sequence.