Toshiba Phone System

I want to build a telephone switching system for 20 exchanges?

i want to do a project on telephone exchanges for wireless cellular network. Please tell me the books/websites or any other kinda of info on it asap

Public Comments

1. How likely do you think it is that an engineer would be hanging out in Yahoo Answers to design a cell system for 160,000 subscribers? Start with a manufacturer and show them the color of your money first.