"Exit codes"??? what do you mean by Exit codes?
I thought this was going to be a list of the ways to get out of the dreaded VRU when calling a company. Someone somewhere has compiled a list of keystrokes that'll take yu directly to a human. Years ago, just pressing zero would do this, but they've tightened up on that a lot
Our helpline at work has a VRU and it's absolutely useless - especially as I'm technically an immigrant! I've found that just mumbling incoherently makes it realise that (i) someone is there, but (ii) they can't understand what I'm saying, so drop down into the touchtone menu
As well as mumbling, I've found that useful words are: Representative, Human, Agent and Person