Yes. I have played Call of Duty games online with a wireless connection with PS3, Wii, and Xbox 360.
For the PS3 you have to buy a wireless router then u connect it to your computer. After that you connect it to your PS3.
click the middle button on your controller. it should say connect to x box live. you need to get a wireless connection at an electronic store. hit connect to xbox live. do everything there, then turn on call of duty. hit multiplayer, then xbox live.
You can only play online for free with a PS3 or xbox360 or a wii. So make an account go to your call of duty game and go to multiplayer go to online connect and there you go your on online mode
multiplayer>connect>internet
There are several ways to play call of duty, if you have a device that does not connect to the internet then there are single player options. Also there is a campaign option which is single player and you do not need to be connected to internet.
You Probably just lost connection with your friend.
The best one would have to be Call of Duty 3 on PlayStation 2. Yes you can go online on it.
All of the newer call of duty games can be played online. I've been playing since Call of Duty 4, and they are making Call of Duty 8 right now, and all have been online enabled.
no
Yes, Call of Duty: Black Ops will have online multiplayer just like many other Call of Duty video games.
yes, call of duty world at war has online. you go into multiplayer and click play online.
yes you can call of duty roads to victory