KR940005532B1 - Voice announcement system of electronic exchange - Google Patents

Abstract

The method includes recording for introducing subscriber information change and abnormal call to a subscriber, connecting and releasing channel for messaging. The method comprises the steps of: (A) checking the state of line and maintaining the line empty for preventing blocking when a channel connection request is received; (B) discriminating the types of requested service and requesting line connection to a space switch; (C) sending connecting complete signal to a global service control block; and (D) releasing line using the space switch when a release request signal is transmitted from the global service control block.

Description

Channel allocation method for recording and announcement announcement in electronic switching system

1 is a schematic diagram of the monetary system of the electronic switching system.

2 is an overall processing procedure of the present invention.

3 is a call flow diagram when requesting a global service channel

4 is a flow chart for releasing a connected channel.

* Explanation of symbols for main parts of the drawings

1: ASS 2: INS

3: ASP 4: TSP

5: INP 6: SSP

7: ASC 8: GSC

9: TS 10: SNC

11: SS

The present invention is a control method for the connection and disconnection of the channel for the transmission of the recording and recording guidance broadcast for the service for the abnormal call or subscriber change during the control of the space switch of the electronic switchboard.

Conventionally, the signal was different for each service when recording or transmitting a broadcast announcement. That is, each table was managed by dividing into fixed recording, editable recording, fixed recording guide, editable recording guide, and conference call. Doing so made the table uncomfortable, increased the number of codes, and the commons. In addition, there is a problem that takes up a lot of memory by managing the line for recording or recording guidance for each subscriber line.

Therefore, the present invention devised to solve the above problems of the prior art integrates a signal and instead sends a kind of service on the signal, thereby facilitating table management and occupying less memory. The purpose is to provide a method.

In order to achieve the above object, the present invention provides a first step of receiving a channel connection request from a block in charge of global service, and then checking a state of use of the circuit to prevent blocking and maintaining the circuit idle. After performing the first step to find a free channel for each service by distinguishing the required service type, the second step of requesting the connection to the space switch, and after performing the second step of connecting the switch in the space switch responsible for the global service A third step of notifying the connection to the block and a fourth step of releasing the connection of the space switch and receiving the release notice when the release request is transmitted from the block in charge of the global service after the third step is performed. It is done.

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

1 is a structural diagram related to a call path of an electronic switching system, in which, 1 is a subscriber switching subsystem (ASS), 2 is a network subsystem (INS), 3 is a subscriber switching processor (ASP), and 4 is a time. Switch processor (TSP), 5 is the network processor (INP), 6 is the space switch processor (SSP), 7 is the subscriber call control block (ASC), 8 is the global service control block (GSC), 9 is the type switch control block (TS), 10 denotes a switch network control block (SNC), and 11 denotes a space switch control block (SS).

A plurality of installed ASS (Access Switching Subsystem) (1) is a subsystem for performing a call processing function to subscribers and relay line matching device, time switch, various signal devices and the like. INS (Interconnection Network Subsystem) (2) is a subsystem that performs space switch function, number translation, routing function and group incoming function that connect ASS (1) with each other. It is connected to the subsystem (CSS).

The ASC (Analog Subscriber Control) 7 interrogated in the Access Switching Prcessor (ASP) 3 belonging to the ASS 1 is a block that manages various types of information about the subscriber and processes the subscriber's call. (8) is in charge of services such as recording and announcement announcements, where call requests come from. The TSW 9 in the TSP (Time Switch Processor 4) controls a time switch.

The Interconnection Network Processor (INS) 5 in the INS 2 is equipped with a Switch Network Control (SNC) 10 to carry out the present invention, and the SNC 10 is a Space Processor 6 (SSP). It is responsible for allocating and releasing a space switch channel for processing calls between ASSs 3 in association with the space switch control block SSW (Space Switch 11).

2 is a schematic overall process flow diagram of the present invention, showing the flow of an arc through a space switch.

A channel connection request comes from the GSC 8 when a call request is made to a called party that does not exist and a call is broadcasted for recording delays, missed announcements, change of subscriber information, and recorded for announcement.

The GSC 8 exists only in the system and is assigned and processed with a space switch channel.

Upon receiving the request for the global service connection from the GSC 8 (21), the SNC 10 determines whether the requested service type is for recording or for recording guidance broadcasting, and in the case of recording, it is a bidirectional recording recording broadcaster. In this case, only one-way channel is found and a space switch is used for connection (22). Then, the space switch under the control of the SSW (11) takes the channel and the connection notification (23).

When the release is performed, the release request is made by the space switch in the GSC 8 (24). At this time, the release request is made by distinguishing whether the channel to be released is a unidirectional channel or a bidirectional channel. 25).

3 is a call flow diagram when requesting a global service channel.

Upon receiving the global service switch connection request (31), the state of the line requesting the call is checked (32) to prevent blocking of the channel. That is, when the line requesting the connection is in use, the channel is disconnected and the line state is changed to the idle state (33).

After the circuit is idle or the channel is switched to idle, the calling highway and the calling highway are found (34). The highway is connected to one highway per ASS (1). Next, it is checked whether the requested global service requires a bidirectional channel or a unidirectional channel (35).

One-way is a channel for transmitting a recording guidance broadcast, and only one incoming channel is connected to hold (36,37). If two-way is required, it is for a service such as a channel for recording or a conference call. In this case, it connects the calling channel and the called channel (38, 39). In this case, the space switch distinguishes between one-way and two-way communication between processors to make the corresponding channel active.

4 is a flowchart for releasing a connected channel.

In the GSC 8, the release request is made with the space switch. In this case, the release request is distinguished from the one-way direction and the two-way direction, and the release request is made to the SNC 10 at the space switch (41).

The GNC 10 checks the state of the channel requested to be released (42), releases it when in use (43), and releases the line and all information related to the channel (44).

Accordingly, the present invention performed by the above-described processing procedure, a simple routine for sending and receiving signals by integrating signals and sending types of services to signals when searching for space switch channels for recording or recording announcement broadcasting. As a result, the table is managed by service type, and the data managed by the subscriber line is reduced and managed at the rate of aggregation of timeslots, thereby saving memory and reducing the probability that the channel is not used and blocked.

Claims (3)

In the channel allocation method for recording and announcement announcement broadcasting in the electronic switching system, after receiving the channel connection request from the block in charge of global service (GSC: 8), after checking the usage of the line to prevent blocking After performing the first step 21 of maintaining the circuit and the first step 21, and after performing the first step 21, the second step of requesting connection with the space switch after finding a free channel for each service by distinguishing the required service type ( 22), after performing the second step 22, connecting the switch from the space switch to the third step (23) for notifying the block (GSC) 8 responsible for the global service, and the third step (23) After the execution, if the release request is transmitted from the block in charge of the global service (GSC: 8), the space switch is disconnected and received by the fourth step (24, 25) receiving the release notification. Channel ship Way. The method as claimed in claim 1, wherein the first step (21) comprises the step (32) of checking the state of the line that requested the call for blocking prevention when receiving the channel connection request, and the result of checking the state of the line. If the channel is in use, the process is performed by steps (33, 34) of finding the calling highway and the called highway after converting to the idle state, and immediately finding the calling highway and the called highway. How to assign. The method of claim 1, wherein the second step (22) is a step (35) of checking whether recording is performed for each global service or recording guide broadcasting, and in the case of recording the check result, the bidirectional empty channel. Finding and connecting to (38,39), and the result of performing the check step (35) In the case of the recording announcement broadcast for the channel characterized in that performed by finding and connecting one-way empty channel (36,37) How to assign.