KR100251407B1 - Ring control method in exchange - Google Patents

Abstract

PURPOSE: A ring control method in an exchange is provided to differently construct a database, and to fractionalize ring kinds of the subscribers as a minimum 500 msec unit. CONSTITUTION: A controller checks a ring on message among ring on/off messages received from a call process task for a ring control. If the ring on message does not exist, the controller turns off a subscriber ring, and makes a ring control buffer as an initial state. If the ring on message does not exist, the controller sets a ring enable or flag, and sets up ring on/off counts as ring on/off count values according to message forms. When a ring delay is set up, the controller confirms whether a value that adds each day and divides into a half is '0'. If so, the controller sets a ring on flag as the ring on count. If the value is not '0', the controller sets a ring off flag as the ring off flag count.

Description

Ring control method in exchange

The present invention relates to a subscriber ring control method in an exchange system, and more particularly, to a method of controlling ring types of various subscribers using a ring flag.

1 is a block diagram of a general exchange system,

The controller 111 controls the call switching and controls the overall operation of the key telephone system to provide various services to the user. The ROM 112 stores basic calls and programs and initial service data of the control unit 111 for performing various functions. The RAM 113 temporarily stores data generated during program execution under the control of the controller 111.

The switching circuit 114 switches various tones and voice data under the control of the controller 111. The subscriber circuit 115 supplies a call current to an extension subscriber (not shown) under the control of the control unit 111 and interfaces a signal between the extension subscriber and the switching circuit 114. Here, the extension refers to a line connecting the switching system and the subscriber telephone. The ring generator 116 generates a ring signal and supplies the ring signal to the subscriber line. The signaling circuit 117 forms a trunk line call loop under the control of the controller 111 to form a trunk line call loop, and interfacing a signal between the trunk line and the switching circuit 114. do. Here, the trunk line refers to a line connecting the signaling circuit 117 and the local exchange.

The tone generator 118 generates various tone signals under the control of the controller 111 and outputs them to the switching circuit 114. The DTMF receiver 119 analyzes the DTMF signal input from the switching circuit 114, converts the DTMF signal into digital data, and outputs the digital data to the controller 111. The DTMF signal input to the DTMF receiver 119 through the switching circuit 114 may be a telephone number generated by the trunk line subscriber or a telephone number generated by an extension subscriber. The DTMF transmitter 120 converts the digital data output from the control unit 111 into a DTMF signal and outputs the DTMF signal to the switching circuit 114. Here, the DTMF signal output from the DTMF transmitter 120 becomes the telephone number of the CO line subscriber generated when calling the CO line from the extension side. The ring generator 116 rings a subscriber (telephone) to the subscriber (telephone). In the switching system, the subscriber ring control is largely performed in two orders. The first is to store in the database of the RAM 113 for ring control, and the second is to actually ring the subscriber based on the contents stored in the database of the RAM 113 in a periodic ring control task. In the past, a 10 subscribers database was created for ring control of 10 subscribers, and the ring control task (performed by 1 second interval) was first performed by 3 subscribers, 2 by 3 subscribers, and 3 by 4 subscribers. If the data is ring-on, the device will ring if it is ring-on (1 second) and ring-off (2 second). When the subscriber call processing task receives the subscriber's ring-off message, the data is oxffff. Clears the ring to stop ringing. The ring agent for one second on and two seconds off because the subscriber ring control task is performed at one second intervals. It is possible, but there is a problem in a wide variety of control ring.

Accordingly, an object of the present invention is to provide an improved ring control method by constructing a database differently for various kinds of ring control and adjusting the period of a ring control task to 500 msec.

Another object of the present invention is to provide a method for controlling a required ring by adjusting a period of a database setting and a ring control task required to diversify subscriber ring control types.

The present invention for the purpose of performing the subscriber ring type 1 second. 2 seconds off and 1 second on. 1 second off and 0.5 second on. The database is established to diversify the ring in 0.5 seconds off, but is further configured to further subdivide the ring type of the subscriber in units of at least 500 msec.

1 is a general exchange system diagram

2 is a memory map diagram according to an embodiment of the present invention.

3 is a flow chart for setting data for subscriber ring control in the database of FIG. 2 in accordance with an embodiment of the present invention.

4 is a flowchart according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A detailed description of a preferred embodiment of the present invention will now be described with reference to the accompanying drawings. In the following, reference numerals are given to components of each drawing, even though the same components are shown in different drawings. Note that they have the same sign. In describing the present invention, when it is determined that a detailed description of related known functions or configurations may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. Terms to be described later are defined in consideration of functions in the present invention, which may vary according to the intention or custom of a user or a chip designer, and the definitions should be made based on the contents throughout the present specification.

2 is an example of database construction of a buffer for ring control according to an embodiment of the present invention.

Ring Enable (BRE) determines a ring on / off period in a ring control task, and performs a ring on period when the ring enable is set. The ring enable is set If not, the ring off cycle is performed.

The ring flag (BRF) turns off the ring that was previously ringing by writing the ring off value to the subscriber ring control input / output only when set in the ring off period. The ring flag (BRF) This is to prevent the ring control I / O from being accessed by the subscriber in the idle state during the ring off period.

Ring on flag (BROF) stores the role of the flag for ring on and the ring on count value.

The ring off flag stores the role of the flag for the ring off and the ring off count value.

The ring on / off count (BRO / FC) stores the time according to the ring type. Initially, the ring on / off count is set at a period suitable for the ring characteristics. The value is decreased by one every time it is performed at 500 msec. When the value is 'ø', the ring on / off period is deformed.

Ring Delay (BRD) allows the ring on / off period to be split in half from the beginning.

3 is a flowchart for receiving a ring on / off message from a call processing task and setting up a database according to an embodiment of the present invention;

Checking a ring on message during a ring on / off message received from a call processing task;

A second process of turning off a ring of a subscriber ringing when the first process is not a ring-on message, thereby initializing a ring control buffer;

In the first process, when the ring on message is not a ring on (bRE) or a flag (bRF) to set the ring on / off count (bRO / FC) to set the ring on / off count value according to the message type In the third course,

After setting the third process, in setting the ring delay bRD, it is checked that the value divided by half by adding one day (bRD + 1) is "0", and when the value is "0", the ring on flag bROF is ringed on. The fourth step is to set the count bROC and set the ring off flag bRFF to the ring off flag count if it is not " 0 ".

4 is a ring service flow diagram according to an embodiment of the present invention.

A first step of checking whether ring enable is set,

In the first step, if the ring enable is not set and the ring flag is set, the second step of turning off the subscriber's ring and ending the processing when the ring flag is not set;

If the ring enable is set in the first step, whether the ring on flag is "O" or not "0", turns on the subscriber's ring and decreases the ring on count by one to determine whether the ring on count is "0". Checking the third step,

A fourth step of setting the ring on count as a ring on flag, clearing the ring on flag, and setting the ring off flag as a ring off count when the ring on count is "0" in the third step;

In the third step, when the ring on flag is "0", if the ring off flag is not "0", the subscriber's ring is turned off and the ring off count is decreased, so that the ring off count and the ring when the ring off count is "0". After the off flag is matched, the fifth step is to clear the ring off flag and match the ring on flag with the ring on count.

Therefore, a specific embodiment of the present invention will be described in detail with reference to FIGS. 1 to 4.

In the present invention, as shown in Figs. 2, 3 and 4, in Fig. 3, a subscriber control task receiving a ring on / off message from a call processing task sets data required for subscriber ring control in the database shown in Fig. 2. Figs. In operation 4, the user can ring the subscribers based on the database shown in Fig. 2 while operating at a periodic task of 500 msec. The ring control of the subscriber can be adjusted in units of at least 500 msec. That is, the control unit 111 sets the data required for subscriber ring control in the database as shown in FIG. 2 in the RAM 113 or the RAM 112. Receives the ring on / off message from the call processing task in step (3a) and checks whether it is a ring on message in step (3b). In Figure 3, the ring of the subscriber ringing is turned off and all of the database of Figure 2 is cleared. However, in the case of the ring on message in step (3b), the ring enable and flag of Figure 2 are set to " 1 " In step (3d), the ring on / off count is set as the ring on / off count according to the ring type of the message. In step (3e), the ring delay is added one by one, divided by half, and the check is made as "0". Here, if "0", the ring on flag is matched to the ring on count, and if not "0", the ring off flag is matched to the ring off count correspondingly. Ring generation example according to the database constructed as shown in FIG. 4, the control unit 111 checks whether the ring enable is set to "1" in step 4a. If it is not set to "1" in step 4a, the control unit 111 checks (4l). Ring flag is set to "1" If the ring is turned off in step (4m), the process is terminated. If the ring enable is set to '1' in step (4a), the ring on flag is turned off in step (4b). If it is not "0", if it is not "0", turn on the subscriber's ring in step (4d), and decrease the ring-on count by one in step (4f). In step (4b), the ring on count and the ring on flag are matched, and the ring on flag is cleared and the ring off flag and the ring off count are matched. When the ring off flag is not "0" in step (4e), the subscriber's ring is turned off in step (4e), and the ring off count is decreased by one (4h). Check if it is "0" or (4j) to match the ring off count to the ring off flag. It clears the ring-off flag, and to match a ring-on and ring-on flag count.

As described above, since various types of rings can be controlled first, and a plurality of subscriber ringers can be adjusted by determining ring on / off cycles in the ring flag database, the subscriber service function of the exchange becomes more diverse. As the type of service is insufficient for the subscriber, the ring ring frequency is different so that the type of ring currently being ringed on the telephone can be easily recognized.

Claims (2)

In the setting method for ring control of the exchanger, A first step of checking a ring on message during a ring on / off message received from a call processing task for the ring control; A second process of turning off a ring of a subscriber ringing when the first process is not a ring-on message, thereby initializing a ring control buffer; In the first process, when the ring on message is not a ring on (bRE) or a flag (bRF) to set the ring on / off count (bRO / FC) to set the ring on / off count value according to the message type In the third course, After setting the third process, in setting the ring delay bRD, it is checked that the value divided by half by adding one day (bRD + 1) is "0", and when the value is "0", the ring on flag bROF is ringed on. And a fourth process of setting the ring off flag (bRFF) to the ring off flag count if it is set to count (bROC) and not "0". In ring control of the exchanger, A first step of checking whether a ring enable is set for ring control of the exchange; In the first step, if the ring enable is not set and the ring flag is set, the second step of turning off the subscriber's ring and ending the processing when the ring flag is not set; If the ring enable is set in the first step, whether the ring on flag is "O" or not "0", turns on the subscriber's ring and decreases the ring on count by one to determine whether the ring on count is "0". Checking the third step, A fourth step of setting the ring on count as a ring on flag, clearing the ring on flag, and setting the ring off flag as a ring off count when the ring on count is "0" in the third step; In the third step, when the ring on flag is "0", if the ring off flag is not "0", the subscriber's ring is turned off and the ring off count is decreased, so that the ring off count and the ring when the ring off count is "0". And a fifth step of clearing the ring off flag and matching the ring on flag with the ring on count after matching with the off flag.

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