asterisk users - Jun 2005 - "auto-dial out" not waiting for answer

I used the "Asterisk auto-dial out deliver message" wiki page: 
http://www.voip-info.org/wiki-Asterisk+auto-dial+out+deliver+message

to whip up some logic whereby asterisk telephones me and lets me know 
when I have received a voicemail.  The one problem is that it doesn't 
wait for me to answer the phone before playing the recording!

Is there a way to get it to wait for me to answer the phone before 
playing me the specified sound file?  I am currently using the 
CVS-04/23/04-16:23:54 release but will be moving to the current stable 
release very shortly.

I have attached my call file and an extensions.conf snippet below. 
Thanks in advance for any help.

cheers,
James




---call file
Channel: Zap/1/6472194113
MaxRetries: 1
RetryTime: 60
WaitTime: 30
Context: callme
Extension: s
Priority: 1
--------------------

---extensions.conf snippet---
[callme]
exten => s,1,DigitTimeout,5
exten => s,2,ResponseTimeout,10
exten => s,3,Answer
exten => s,4,Wait(1)
exten => s,5,Playback(you-have-mail)
exten => s,6,Hangup
------------------------------