Design And Realization Of The Wide Area CENTREX Based On ZXJ10

Along with the great development of communications technology, group users are more and more important in the vehement telecom markets . Group users distribute in different area. They need individuated and diversiform service. Wide Area Centrex (WAC) can realize phonic interconnection between different branches in different area of one group. Centrex means Concentrative centre exchange service .This is a new service of the Digital SPC Switching System . It makes the best use of telephone exchange network resource .it sets up the consumer exchange system which focuses on the user all over the city . Users can share the functions not only basic calls, and supplementary service, but also some multiform supplementary services such as PBX. This passage introduce the principle on how to use the CENTREX service of the Digital SPC Switching System of ZXJ10 to realize the Wide Area CENTREX .and then take the Wide Area CENTREX of Regional Tax Authorities of Fushun as the example ,introduce the process on how to set up CENTREX particularly .CENTREX has the characteristics of the basic function of PBX and various new service of the public telecommunications network .use the public telecommunications network exchange instead of the PBX. Also still keep the basic function of PBX .using the exchange its own CENTREX functions makes up CENTREX .Its advantages are agility ,various service , the same development with the technology of the public telecommunications network, professional maintenance etc. The users don't need to buy PBX equipment or rent trunks ,also can use the functions of PBX and the public telecommunications network general call service .also can use the special service functions of the public telecommunications network .every CENTREX user has two numbers , one is uniform number ,called long number ,the other is for the users that belongs to the one contrex group ,called short number . Under this group structure ,the users who are in different area branches but belong to the same CENTREX business group can use this short number .it is easy and convinient to dial the group number before your city number ,then you can call the number beyond the CENTREX. It's the key solution to solve the problems like the single service of communication , and bottleneck etc . Also fully excavate the potential of the network , provide the economic ,and convenient service .This passage also introduced Wide Area CENTREX from CENTREX. It is the single CENTREX and its more function,also called Wide Area CENTREX Service . Wild Area CENTREX has two service to realize. One is using intelligent net the other is using exchange .Wide Area CENTREX of Local Tax of Fushun use this exchange. The short number inner CENTREX corresponds to the other exchange abonement number with "granting virtual number ". When ZXJ10 mapping the Wide Area CENTREX data. We can check that CENTREX data , get this short number correspondence with other exchange abonement number , if this short number calling for is to suppose a number while abonement inner CENTREX calls for each other, then analyze again and receiving to other exchange , realize the function that the abonement number inner CENTREX calling for each other. The Wide Area CENTREX service has made the CENTREX application break upper restriction of region, its application range is especially broad , the group net is especially nimble. And the service competition of the telecom operators has got rise.In forming Wide Area CENTREX of Regional Tax Authorities of Fushun parts, it introduced the concrete process that how to set up Wide Area Centrex using the CENTREX function of ZXJ10, according to the characteristic abort that Wide Area CENTREX of Regional Tax Authorities of Fushun in having many places to handle official service in our city, and belonging to different exchange mark in two tandem exchange. Wide Area CENTREX of regional tax authorities of Fushun require that the main function has: call for short five digit numbers each other within CENTREX, every owes short number corresponding local number, it needs to add the Outbound Prefix "9" before local number when the number calling for it, the local number needs calling for the local number corresponding that the number corresponding for in CENTREX, the different number is able to deploy the different the extent of authority calling for and attribute of service. Before establishing CENTREX, it increasing CENTREX analyzer entrance first, the switchboard will gives the analyzer to assign a serial number voluntarily, and then increase a sub choosing of the number analyses, filling in every analyzer in proper order according to service call for. After having established CENTREX, need to deploy the short number inner the CENTREX,increase user inter it,will owe number and strong point number one to one correspondence within the CENTREX getting up,such outsides consumer can allocate the number striking the inner coming to call for CENTREX local calls number right away. And long number need choosing "granting virtual number " and adding to outgoing marking "111"before local number. The last, analyzing the short number, the Outbound Prefix"9"and the outgoing marking"111", have realized the function that the short number inter the CENTREX being able to calling for each other, and to call for out with the Outbound Prefix "9" + the numbers outside CENTREX. It having resolved the question that the abonement does not have local calls can't call for outgoing. That in the field of billing contacts, my company adopts is that the third party billing contacts, here right away no longer compose introduce that.Composing the consumer of groups, we satisfy the consumer needs that providing Wide Area CENTREX service and developing various new service inner the CENTREX , expands company service effect and lay a good foundation for categorical company service ceaselessness development . It already drives the pattern that the pattern changes into the marketplace and service decision from past technology," marketplace is guide , customer is god " has already become the following step of inevitable trending and strengthening a network development .