KR100414916B1 - Method for call distribution routing by call rate - Google Patents

Abstract

PURPOSE: A method for call distribution routing by a call rate is provided to operate routing by incoming routes and call distribution routing at the same time, accept a call distribution function to subscriber calls, and route call distribution without increasing a load of an NTP(Number Translation Processor). CONSTITUTION: When a call is generated, the kind of routing is analysed. In the case that the kind of routing is special routing, the corresponding prefix information of an originating group are analysed to obtain special route sequence. Routing information including call limitation by originating groups, call distribution by rates, call distribution rate by time and call distribution by time are accessed. When a call distribution function is not registered in the routing information, route sequence is obtained, and routing information and a route number are obtained to set up a call. When the call distribution function is registered in the routing information, distribution information by call rates and time dependant distribution information are obtained from a call distribution table to set up the call.

Description

Call Distribution Routing Method by Call Rate

The present invention relates to a routing method of a switching system, and more particularly, to a method in which an intermediate switching center receiving a call originating command distributes routing according to a distribution ratio of a call in order to route the command to another switching station.

In general, distribution routing by call rate implemented in the IGS / SSP of the electronic switching system is designed to be distributed routing by specifying the call distribution rate and the route to be distributed for each incoming route prefix. The conventional exchange system has several DAT (Digit Analysis Table) to accommodate a number of station numbers in the system. And it is configured to vary the translation start point of each DAT prefix to accommodate the DAT station number separately. In this case, the same station number exists in the exchange system. In addition, the conventional switching system is not capable of distributed routing for outgoing calls.

1 is a diagram showing the structure of an exchange system.

Inter Network System (INS) is a Switch Network Sub system. The switch network subsystem INS includes a network synchronization device (NES), a plurality of central data links (CDL), a space switch (SSW), and an IPC that controls communication between processors. Inter Processor Communication) and a plurality of control processors.

Referring to the configuration of the control processors of the switch network subsystem, an INP (Inter Network Processor) for controlling the entire call path system and a number translation processor (NTP) for controlling the number translation and routing functions (NTP) : Number Translation Processor (NPS), Network Synchronization Precessor (NSP) to control the network synchronizer, Switch Network Processor (INMP: Interconnection Network Maintenance Processor) for maintenance of the INS, and Space Division Switch SSW Space Switch Processor (SSP) for controlling the control unit, and a central link processor (CLIP: Central Link Interface Processor) for controlling the processor communication control unit of the central portion of the system.

ASS is an Access Switch Sub system. The access switch subsystem is divided into subscriber subsystem, relay line subsystem, and NO.7 signal processing subsystem according to its use.

Each of the access switch subsystems includes an access switch processor (ASP) for overall control of the corresponding access switch system, and an access switch maintenance processor (ASMP) for maintenance of the access switch subsystem. A processor, a time division switch and a local data link (TSL: Time Switch & Local Data Link), and a time division switch control processor for controlling the time division switch and the local data link in common.

In addition, the subscriber access switch subsystem includes an analog subscriber interface (ASI), an analog subscriber interface processor (ASIP) for controlling the subscriber module ASI, a dual tone multi frequency (DTMF) signal, and various audible signals. It consists of a Local Service Processor (LSI) that processes signals.

In the case of a trunk line access switch subsystem, a T1 repeater unit (DTI: Digital T1 Interface), a T1 repeater control processor (DTIP: Digital T1 Interface Processor) for controlling the T1 repeater unit DTI, and an E1 repeater unit (DCI: Digital). A CEPT interface, a trunk line control processor (DCIP: Digital Cept Interface Processor) for controlling the E1 trunk line unit DCI, a local service unit (LSI: Local Service Interface) for processing R2 signals, and the local service unit LSI It consists of a Signaling Device Processor (LSP).

In the case of the NO.7 signal access switch subsystem, a NO.7 signaling terminal group (STG) and a processor (SMHP: signaling message handling processor) for controlling the NO.7 signal terminal group STG are configured. .

CCS is an operational and maintenance switch subsystem. The operation and maintenance switch subsystem includes an operating and maintenance processor (OMP) that manages operation and maintenance, an MMC (Man Machine Processor) that is in charge of man-machine communication (MMC), and an operation maintenance sub-system. It consists of a processor (CCMP: Common Control Maintenance Processor) that is responsible for the maintenance of the system and various peripherals. The peripheral devices include a disk (DSK), a magnetic tape unit (MT), a printer (PRT: printer), a CRT, a PC), and an alarm panel (AP).

2 shows a distribution routing scheme in a conventional switching system (TDX-10 IGS / SSP system). Referring to FIG. 2, an operation procedure of routing according to call distribution is as follows.

As can be seen from the conventional operation procedure of FIG. 2, the incoming route route routing and the call distribution routing cannot be simultaneously operated, and the call distribution function for the subscriber call cannot be accommodated. In addition, in case of call distribution routing, the number of NTP (Number Translation Processor) is increased. In addition, it can be seen that the implementation is not compatible with time dependent routing.

Accordingly, an object of the present invention is to provide a method capable of assigning and routing a special route sequence to a station number in a special routing, having normal routing and special routing.

Another object of the present invention is to provide a method for simultaneously operating call distribution routing of a relay call and a subscriber call during call distribution routing in an electronic switching system, and simultaneously operating routing for each incoming route and call distribution routing.

In order to achieve the objects of the present invention, the call distribution routing method of the switching system analyzes a routing type when a call is generated, and analyzes a special routing date and time, corresponding prefix information of an originating group, in order to obtain a special route sequence. And accessing routing information including call distribution by rate, call distribution ratio by time, and call distribution by time in the special route sequence, and call distribution function in the routing information. If not registered, obtain a route sequence, obtain routing information and route number, and set up a call; To set up the call by obtaining distribution information .

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the same parts in the figures represent the same reference signs wherever possible.

The configuration of the exchange system for carrying out the present invention has the same configuration as that in FIG. 1 and the same reference numerals and functions. The present invention is to improve the routing structure in the switching system having the configuration as shown in FIG.

According to the present invention, the routing structure improved according to the present invention includes a normal route sequence assigned to a station number in the case of normal routing to perform routing, and a special route sequence in the station number in the case of special routing. Routing is performed by assigning a special route sequence. In this case, the special routing includes incoming route routing, distribution routing by call rate, time dependent routing, and the like. The special route sequence allocates a route sequence for each traffic type (originating group) to perform a function of call distribution (ratio distribution or time distribution), routing for each incoming route, and the like.

3 is a diagram illustrating a routing method of the electronic switching system according to the present invention, which shows a special routing structure.

Referring to FIG. 3, first, start points of a prefix table are different for each of a plurality of area codes in the same system. However, if the same system serves only one region, the ODN groups are all "0".

When the originating group, which is the region delimiter, receives the prefix "yyy" from the subscriber or the incoming call of "x", the special route sequence # "s" is obtained by analyzing the information of the prefix corresponding to the originating group "x".

Various routing information is obtained from the special route sequence # "s". In this case, the routing information may include screening of call restriction, call distribution by rate, call distribution by time, call distribution by rate and time, and the like.

If the call distribution is not registered, the route sequence # (rseq aa) is obtained, and routing information and route number are obtained to set up the call. If call distribution is not registered here, it corresponds to resq (aa), which has only a meaning of selecting outgoing route sequence according to simple call limit and originating group (traffic type of subscriber and incoming call).

If call distribution is registered, call distribution table point pp is obtained, and the distribution route sequence number bb is obtained from the call distribution table according to various distribution-related information to set up the call. The information related to the distribution in the call distribution table includes distribution information (call rate, distribution route sequence) by call rate, distribution information (time (day, day, date) and distribution route sequence) by time zone.

Looking at the distribution routing by call rate, the designated call distribution rate can be specified by 10% -90% in 10% units, and the sum of call distribution rates is 100%. Distribute calls with up to four different root sequences with up to four call distribution ratios.

Looking at time-sensitive routing, the call is divided into two route sequences over time. There are three types of time and call distribution accordingly. First, look at the method of time specification. If the current time (time required for call) is within the specified time range (start time-end time), the call is distributed to the first root sequence, and if it is outside the specified time range, the second root sequence Distribute the call. Secondly, in the method according to the day designation, the call is distributed to the first root sequence if the current day (the day of the week for which the call is requested) is assigned, and the call is distributed to the second root sequence if it is not the specified day. Thirdly, the method of specifying a date shows that if the current date (date required for arc) is within the specified date range (start date-end date), the arc is distributed to the first root sequence, and if it is outside the specified date range, the second root Distribute calls to sequences. Fourth, the call is distributed by combining the method according to the time, day, and date.

Calls may be distributed by combining the above-described method based on the call rate and the method of classifying by time zone.

The operation procedure of the special routing related to division routing by incoming route, distribution routing by call rate, and division routing by time slot is as follows.

As described above, if the routing structure is improved by the method according to the present invention, routing for each incoming route and call distribution routing can be operated simultaneously, and the call distribution function for the subscriber call can be accommodated. It does not increase the load of and has the advantage that it can be mixed with time division routing.

1 is a diagram showing the configuration of an exchange system.

2 is a diagram illustrating a distributed routing structure of a conventional switching system.

3 is a diagram illustrating a distributed routing structure according to the present invention in an exchange system.

Claims (1)

1) A call distribution routing method of a switching system, Analyzing routing types when a call occurs; Assigning and routing a route sequence according to a general routing date and time in the analysis process; Obtaining a special route sequence by analyzing the corresponding routing date and prefix information of the originating group in the analysis process; Accessing routing information including call distribution by rate, call distribution by rate and time, as called by the special route sequence; When the call distribution function is not registered in the routing information, obtaining a route sequence, obtaining routing information and a route number, and setting up a call; When the call distribution function is registered in the routing information, the call distribution information is obtained from a preset call distribution table and call distribution information by distinguishing time zones is set up. Call distribution routing method.