I am currently studying for a CCNA, but I had a great interest in VoIP technologies, and I would love to be able to practise this if possible, just for self learning and enjoyment. I currently have a 1780 Cisco router that states 'these slots are only for voice interface cards', albiet they are empty. This sparked my initial curiosity. After reading a lot of websites and even buying a Cisco self-learning book, I still am not sure where to start.
Basically, what is the minimum hardware requirements to get two Cisco VoIP phones to work over a LAN? Thats all...
I have a voice capable router (but no expansion card), I believe, but apart from that I am not sure where to start or what to do. Any advice for hardware, tutorials or even just 'get this, and then get this and try this' type of stuff would be greatly appreciated!