Print position in console

I don't usually do my teams set up but when at the menu with your list of steam friends online in game, you can choose which you play there. I believe you want the 'competitive' matches or matchmaking.

Click Play > Find a Game or Community Quick Play or Play with Friends should all allow you to play with people.

If you are in Steams offline mode you might have issues.

Well, I personally wouldn't make the command say that in chat, since it could be annoying to other players. You could use "echo" instead, which displays a message in console.

But to answer to your question, I don't have a way you would like it (I doubt that you can even check the variable like that in CSGO), but I have an alternative: Bind it for two keys.

F1 sets voice_enable 1, and you could add a message for that to say it's on.

F2 sets voice_enable 0, and it would give a message that voice is off.

If you use

bind "F1" "toggle voice_enable 0 1"

you can see the change in console, without having to add any "echo" or other commands. Just make sure you have binded console to some key.