KR970014060A - Direct call method of integrated information communication network key phone system - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

The present invention relates to a direct calling method of an integrated information communication network key phone system.

2. The technical problem to be solved by the invention

The present invention provides a direct extension method of an ISDN key phone system.

3. Summary of Solution to Invention

Sub-address information for designating a specific terminal on a point-to-multipoint by mapping an extension number, extension group number, greeting message, release message, and no-answer call number in the key phone system, and the CO line number information matching the CO line alarm message, In the direct call method of an extension of a key phone system having a function code information matching a password and a function subroutine, the first step of checking whether there is an incoming signal and, if there is an incoming signal, sends a greeting message of the called party to the UUI in the alarm message. A second process of reading a sub address in the setup message and checking whether there is a sub address; a third process of checking whether there is an extension, an extension group, or a function code that matches the sub address; General extension, if the extension is busy, perform the incoming call service and if it is free In the fourth process, the call is released after a certain period of time after connecting the call to the UUI of the connection message and sending a call in case of absence and sending the absence message to the UUI in the connection message. In the case of the fifth step of performing the extension group call, and if the sub-address is a function code, check whether the function code and the subsequent password match and control to perform the corresponding function, and if the function code and the password is If it does not match, the release message is included in the UUI, indicating that the service is not available.

4. Important uses of the invention

Used to directly call the extension of the ISDN keyphone system.

Description

Direct call method of integrated information communication network key phone system

Since this is an open matter, no full text was included.

1 is a configuration diagram of a sub-address related table according to the present invention;

Figure 4 is a flow chart showing the direct extension call process of the ISDN key phone system according to the present invention.

Claims (9)

Sub-address information for designating a specific terminal on a point-to-multipoint by mapping an extension number, extension group number, greeting message, release message, and no-answer call number in the key phone system, and the CO line number information matching the CO line alarm message, In the direct call method of an extension of a key phone system having a function code information matching a password and a function subroutine, the first step of checking whether there is an incoming signal and, if there is an incoming signal, sends a greeting message of the called party to the UUI in the alarm message. A second process of reading a sub address in the setup message and checking whether there is a sub address; a third process of checking whether there is an extension, an extension group, or a function code that matches the sub address; General extension, if the extension is busy, perform the incoming call service and if it is free In the fourth process, the call is released after a certain period of time after connecting the call to the UUI of the connection message and sending a call in case of absence and sending the absence message to the UUI in the connection message. In the case of the fifth step of performing the extension group call, and if the sub-address is a function code, check whether the function code and the subsequent password match and control to perform the corresponding function, and if the function code and the password is The method of claim 6, wherein the call release is carried out by including a message in the UUI that the service is not available in the release message. The method as claimed in claim 1, further comprising: if the caller's number is present in the setup message when the sub address is a general extension and is busy, storing the call at an unanswered call line of the extension. 3. The method of claim 2, further comprising the step of storing an incoming call number in a memory. The method of claim 1, further comprising: virtually connecting a call to the incoming call when the sub-address is a function code and performs the corresponding function by matching the password following the function code. How to. The method of claim 1, wherein the function is a pager function. 5. A method according to any one of claims 1 to 4, wherein said function is a function for correcting specific decibels. The method according to any one of claims 1 to 4, wherein the function is a function of identifying an undelivered number. The method of claim 1, further comprising sending and receiving a display message or necessary information by a signaling request from one user to another user after a call is made. The method of claim 1, further comprising performing a general trunk line incoming service if the sub address does not exist. ※ Note: The disclosure is based on the initial application.