Click to Call Using Asp.net and Asterisk

I need some one to develop a simple web site with 2 pages: 1- Using to config Asterisk setting like Server IP, Port, ID and Other information need it to do a sip call. 2- a webpages with one procedure that take to param (a phone number to call and the user's extension to connect it with a receptor). The basic requirement: 1- Store de config asterisk setting on SQL data base. 2- Use Store Procedure to interact with data base. 3- Create a Entity class that represent the interaction with asterisk.