[Freeswitch-users] Invalid application valet_park?

http://pastebin.freeswitch.org/13782 Working through the FreeSWITCH book on page 61, had a conversation going, hit the transfer soft-button on phone, dialed 6001 and tried to retrieve call, but could not. It looked like call was on hold. Any ideas on what I might have done wrong? Thanks, Lars