Caller Line Identification

Hello, We are a development company ourselves and are developing a website for our client. This website would contain a huge database of business name and business number. Client also wishes to have a customer support for their clients. The customer support agents would receive calls and they wish an application to fetch the name of the business based on the number in the caller line identification and show the name of the business on screen. There also could be a scenario when a new business is calling and in that case there should be an option to enter details of that business while on the call. This will help them to see name of that business when they call again. The database from which the numbers would be fetched is in MySQL. Hence the application built for customer support should be able to connect with the MySQl Database. I would need this application completed asap. Thanks in advance.