Can you join a waiting room before playing zombies with friends?

[erickxavier22]

I wanted to play zombies with friends, but I have to join in round 2, it is not a problem, but I wanted to know if you can join a waiting room with my friends or only with the command can you enter directly?

[PeterG]

erickxavier22 not possible.

[erickxavier22]

PeterG Does that mean that it can only be done with the connect command?