[Asterisk-Users] Message on Hold

[Matt]

Hi,
I know that I can have an AutoAttendent menu play when someone is in a
queue to say something like "Press 1 now to leave a message, or to
continue holding stay on the line..."  However, is there anyway to
prevent that from happening until the caller has been on hold for say
5 minutes?  In other words, I don't want the caller to leave a
voicemail UNTIL they have been on hold for 5+ minutes.