Dialing from PC

I would like to give our users the functionality of dialling a number on their desk SIP phone from their computer. They currently use a database i developed which uses a MySQL backend so ideally i would be able to integrate it into this (or alternatively just dial contacts from Outlook).

Are there any modules out there already to acheive this or can anyone point me in the right direction with where to start?

Thanks,
Chris

http://www.lmgtfy.com/?q=asterisk+click+to+dial#

Thank you, i had tried so many different search strings in Google but clearly didnt get the write one! I am using http://forums.whirlpool.net.au/archive/855641 but when i run the PHP my phone rings but when i pick up i receive a recorded message saying ‘Goodbye’. I’m still very new to this so if you are able to help or point me in the right direction to read up on where to go from here i’d really appreciate it

Thanks,
Chris

I have got the click to dial working now. All works fine when i type the URL in to a web browser but i still get prompted to enter a username and password (to connect to FreePBX, not AMI). As this is running from a separate PHP server is there any way to always trust connections from a single IP address (or code the login details into the PHP)

Many thanks,
Chris