Asterisk Based Work

The first task I may possibly offer is this 1. To build a click to call feature on a website for a list of numbers 2. This click to call feature must pop up a) Skype or any kinda web based phone to call these numbers b) It can also give an option to connect to a PSTN I prefer a web based add on, that can recide on my server, i dont want to spend any money for these calls, i want it free. as they are all toll free numbers. I have maybe about 50 numbers or so only. Let me know, if you can do this project, how long it will take ? PB.