The Design Of A Business Phone Service Communication System

The service of business phone is keep growing.Business over phone is becoming more and more important.The requirements of additional functions are getting bigger, but the normal phone cannot support so many growing needs.With the opening of telecom service,more and more functions and services are added by the supplier,but the existing phone equipment only implements some parts of them.Analog phone cannot support so many needs of business.The cost of digital phone system is too expensive.For saving money is the most important thing of each company, more telecom saver and dialer are needed.With the requirements of moving office,the moving telephone exchange/extension becoming acceptable.So,a system with total solution that could gather all the business phone services is really needed.Therefore,the author designed this system is to use the lowest cost integrated with varied advantages including analog/digital phone,dialer and mobile-commerce.The biggest characteristic is flexible and cheap.The user can use this system not only as a cost saving phone but also as a business phone call bridge with different routing policies.On the top level design view,this system is composed with microchips,GSM module,line/switcher interfaces and corresponding software.Considering the cost of hardware,the author chose the higher cost performance chips.From the software design view,module design and state machine make the functions more flexible and prepare the space for future updating.Operator obtained remarkable effect by develop and debug in several months with the 1^st and 2^nd version,now is on developing the 3^rd version.According to market's response with the two previous versions,the number of sale is increasing very fast.It will improve produce effect and saving cost.It will take a huge economic effect for enterprise.