"wheres the BEEP"

I have setup up a sound card to work for a paging application and thats works great but there is no BEEP before the page. I dial *51 and it goes directly to the page. Can any point me in the right direction?

Can you show your dialplan? Did you include a sound to play? Here is my dialplan that works fine.

; *68 External Page via sound card
exten => *68,1,Ringing
exten => *68,2,Dial(console/dsp,20,A(custom/Bosun56))
exten => *68,3,Hangup

I searched the 'net and found the bosun sound byte to play but it can be any sound.