Asterisk Timeout

Hi everyone, \i am trying to impelemt timeut in an Asteriks 11 IVR:

exten => 1234,1,Answer()
same => n,Set(TIMEOUT(response)=5)

[some code here]

exten => t,1,Background(timeout)
same => n,Playback(Goodbye)
same => n,Hangup()[/code]

However, this does not work, if nothing is entered, it simply does:

Any ideas?

I believe t is for the case where a partial number has been entered.