KR930010253B1 - Method of compiling a called number of full electronic exchange - Google Patents

Abstract

The terminating directory number translating method in a full electronic switching system having ASS, INS and CCS includes the steps of forming a data base in a double-linked list structure, determining a received terminating directory number is accommodated within the system upon the input of a terminating directory number translation demand, obtaining and analyzing a terminating directory line and determined information for general number service, automatic private branch exchanger hunting and digital number service according to the analysis of the terminating directory line, thereby giving diverse numbers desired by a subscriber and of a special purpose, and further supplying high- quality numbering service by satisfying all demands of numbering of those who receive the voice and unvoiced service.

Description

How to translate caller's number of electronic exchange

1 is a block diagram of an electric electron exchanger to which the present invention is applied.

2 is a block diagram of a database according to the present invention.

3 is a flowchart of a step of determining whether a number is contained within a system according to the present invention.

4 is a flowchart of an incoming information determining step according to the present invention.

* Explanation of symbols for main parts of the drawings

1: CCS 2: INS

3: ASS 4: NIP

5: INP 6: PBXC

7: NIR 8: RCO

The present invention relates to a terminating directory number translation method which is a number translation function in an electronic switching system.

Called party number translation is called when the called party receives the number of the subscriber who wants to pick up the receiver and translates the received number when receiving a digit from the incoming call. This function is to determine the line.

Conventionally, when installing an exchange office, the subscriber number accepted by the system is fixed to 4 digits uniformly, and 4 digits of the digits except the station number among the digits sent by the subscriber are interpreted as unconditionally called number when the called number is translated. It was. Therefore, in operating the system, it is not possible to assign numbers according to subscriber and system capacity, but it is possible to assign a maximum of 10,000 subscriber numbers to one station number, and there is a problem that the number of subscribers should be allocated at least four digits uniformly. .

The present invention devised to improve the above problems efficiently uses the memory, and without limiting the length and number plan of the called number, if the station number is different and accepts the same called number without limitation, the subscriber wants to give the desired number and special purpose Its purpose is to provide a method for translating the called number that flexibly copes with the numbering, responds to the diversified numbering needs of all subscribers who are provided with voice and non-voice services of large-capacity electronic exchanges, and provides quality call service. There is this.

In order to achieve the above object, the present invention provides an access switching subsystem (ASS) for performing call processing with subscriber and relay line matching devices, time switches, and various signal devices, and a space switching function for connecting the ASSs with each other, number translation, and routing. Electronic exchanger consisting of Interconnection Network Subsystem (INS) that performs functions, and Central Control Subsystem (CCS) that manages system-level operation management, maintenance, billing, statistics, hard disk management, and I / O devices. A method for translating a called number, comprising: a first step of constructing a double linked list structure of a database for translating a called number so as to provide maximum flexibility in number planning or numbering system; A second step of determining whether the called number is an accepted number in the system, a third step of obtaining and analyzing the type of the called line; Depending on a result of the analysis of the called group lines are performed by a fourth step of determining information for a general call services, hunting automatic branch exchange, and a digital call service.

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

1 is a configuration diagram of an electronic switching system to which the present invention is applied, 1 is a Central Control Subsystem (CCS), 2 is an Interconnection Network Subsystem (INS), 3 is an Access Switching Subsystem (ASS), and 4 is a Number Translation Processor (NTP). 5 denotes an INP (Interconnection Netwrok Processor), 6 denotes a Private Branch Exchange Control (PBXC), 7 denotes a Number Translation Subsystem (NTR), and 8 denotes a Route Control (RCO).

The electro-electronic exchanger to which the present invention is applied is composed of three subsystems, CCS 1, INS 2, and ASS 3, as shown in FIG.

The ASS 3 performs call processing with subscriber and relay line matching devices, time switches, and various signaling devices.

The INS (2) is composed of INP (5), PBXC (6), NTR (7), and NTP (4) with RCO (8), located in the center of the system to connect the ASS (3) with each other It is in charge of space switch function, number translation and routing function.

The CCS 1 performs system-level operation management, maintenance, billing, statistics, and management of hard disks, input / output devices, and the like.

The processor to which the present invention is applied is NTP (4), which accepts the number system and route of the public telephone network, analyzes subscriber's digit information and inter-signal signal information, and searches for the location of the caller and the called party and a private branch exchange. It consists of NTR block (7) which controls the sending and receiving of group subscribers, etc., which is software block number translation, RCO block (8) which performs routing function, and PBXC block (6) which controls group subscriber's incoming. do.

2 is a block diagram of a database according to the present invention.

As shown in FIG. 2, the database in which the present invention is implemented is a double linked list structure in which each digit is linked to each other, and the first tuple (the first digit of the digit of the called number translation start point and the called digit obtained at the time of translation of the station number) Access the tuple of the table to analyze the state of the called number digit (11) to determine whether the next tuple digit is linked and to determine the next link point value (12), which corresponds to the next digit with the point value and the next digit. Access the tuples so that they continue to be linked between the digits, mark the destination number digit status of the tuple corresponding to the last digit as the end of the link, and also link back to each other (13) and the incoming line Classify the information into four types (14), and do not implement a number translation function for a comprehensive information communication network or packet service. It is configured to the corresponding called party according to the service type.

The dual linked list structure can efficiently use memory, and the structure is not restricted by the combination of numbers or the length of numbers.

3 is a flowchart of a step of determining whether a number is accommodated in a system according to the present invention, and shows a process of searching for a received number received from a called number translation request and receiving a number received in a system.

When receiving the incoming number translation request from the outgoing signal processing block (21), the received incoming number translation start point and the digit for translation are stored (22) and the first digit of the received digit is extracted (23) Using the translation start point and the first digit as the key, we find the tuple of the database (24) and obtain information about the digit and begin to analyze (25). This process is repeated to analyze the digits one by one (26) and continue to analyze until it is determined whether the incoming number is accepted in the system (27, 28).

In this case, if all the digits are analyzed and the plate size does not appear, the digit length required for translation is obtained (29), and a translation request is received after receiving the digits corresponding to the digit length to the transmission axis (30). As a result of the analysis, if the number is not accepted by the system, the missing axis is notified to the calling axis (31). In the case of a changed called number, the called number is changed (32).

4 is a flowchart of a call information determining step according to the present invention, which shows a step of determining call information by analyzing a call line to provide a corresponding call service.

If the called number is a number accommodated in the system, the type of the incoming line is obtained (33), and the incoming line type is analyzed (34, 35). If the called line is a general (analog) subscriber line, the called processor number and line for the general call service. A number is obtained (36), billing information is obtained (37), and an incoming call occupancy request is requested to the analog subscriber call processing block (ASC) in the ASS (38).

In the case of a PABX line, the processor number and line number for the hunting of the automatic branch exchange are determined (39) and after analyzing whether the called number is the representative number or the individual number of the automatic branch exchange group. (40) To find out which group among the group of automated exchanges housed in the system, the group number of the autonomous branch switch is obtained (41), the billing information is obtained (42), and a hunting request is made to the PBXC block in the INS (2). 43).

In addition, if the incoming line is a digital subscriber line (ISDN), the receiving processor number and the receiving line number for the digital call service are obtained (44), the billing information is obtained (45), and the digital subscriber incoming call processing block in the ASS (3). (DSC) makes a digital incoming processing request (46).

The present invention constructed and operated as described above configures the database structure for called number translation as a double linked list structure, linking the digits of the called number to a point, and efficiently memory without restricting the length and number combination of numbers. If the station number is different, the same called number can be accommodated without restriction so that the subscriber can be flexibly coped with granting the desired number of his / her visa and special purpose number. In addition to calls, automatic exchanges, digital and packet call services are available, and extension numbers for Centrix services can be given a number that is at least three digits long and can accommodate as many digits as the maximum number of systems. Voice and non-voice service of high-capacity electronic exchange technology Made various offers to all subscribers receiving numbers assigned numbers and quality have applied effects to provide translation services.

Claims (3)

ASS (Access Switching Subsystem) (3) which performs call processing function with subscriber and relay line matching device, time switch, and various signaling devices, and performs spatial switch function, number translation and routing function connecting ASS (3). INS (Interconnection Network Subsystem) (2), and Central Control Subsystem (1) (1) which manages system-level operation management, maintenance, billing, statistics functions and hard disk management, and I / O devices. In the method of translating the called number of the electronic exchanger; In the first step (figure 2), which consists of a double linked list structure for the called number translation for maximum flexibility in number planning and numbering system. A second step of determining whether the number is accepted in the system (figure 3), a third step (33, 34, 35) of obtaining and analyzing the type of the incoming line, and a general call service according to the result of the type analysis of the incoming line, And the fourth party (36 to 46) determining the information for the automatic branch exchange hunting and the digital call service. The method of claim 1, wherein the second step of determining whether to accept the called number in the system (FIG. 3) includes storing the called number and the called number translation start point when an incoming number translation request is input (21, 22). Analyzing the received digits one by one from the first digit one by one to determine if the called number is accepted in the system, and changing the called number and notifying the called number if it is not accepted (23, 24, 25, 26, 27, 28). (31,32), and if all the digits received in the translation request cannot be analyzed and it is not possible to determine whether the received number is accepted in the system, the length of the digit required for the analysis is obtained, and the digits are received as much as the corresponding digit length. Called number translation method, characterized in that performed by the step (29,30) requesting the translation request. The fourth step (36 to 46) of the processing according to the type of the incoming line is to obtain the incoming processor number and line number for the general call service and obtain the billing information (36,37,38) requesting the incoming line occupancy request to the general subscriber call processing block; if the incoming line is the automatic branch exchange line, obtain the processor number and the line number for the automatic branch exchange hunting and the called number is the automatic premises Analyzing the representative number or the individual number of the exchange group, determining the auto branch exchange group number, obtaining billing information, and requesting hunting (39, 40, 41, 42, 43), and the called line is a digital subscriber line. In the case of obtaining the incoming processor number, the incoming line number, and the billing information for the digital call service, and performing the digital incoming processing request (44, 45, 46). Called number translation method wherein the.