[Asterisk-Users] Dial 0 to outbound

[Carlos Arnt]

Hi Folks.

I see that can put 0 to call out using a x101p (zaptel) or even a pstn service.
Thats great, but when press the 0 i just dial then the numbers to call out.

There is any way after hit 0 (ear) the line sound ??
I know it's just a style way put some users, really like it !!
So after hit 0 to call for example a pstn the user will ear the line sound 
to dial out.

I read lot's of doc's but can't find nothing explaining this method.
Thanks alot !

Carlos.