You can have group video/voice chats within skype. you just invite people to an existing conversation.
I'm not sure about hosting a server but Mumble is another VoIP client.
Regardless, there are always free public TeamSpeak/Vent/Mumble servers you can use, just google it.
Hope this helps,
I've just got and built my gaming system.
Im looking to play with around 3-4 people.
What program is FREE, easy to use and set up that can take 3-4 people?
I've heard of Ventrillo but i think you have to pay and pay for the server?
I've heard RaidCall but i think you also have to pay for the server however free if you know someones server already to use
I've got skype but rarely use it and dont really know my way around it and i think it cant support 3-4 people in voice mode only max of 2?
Anything else out there? -remember: FREE (but good service) and EASY to use/set up