[Asterisk-Users] No ringing when I dial an extension

[Jim Archer]

Hi All...

When I dial into my Asterisk box and then dial an extension, I here silence 
until the person picks up or until the call goes to voice mail.

At one point I had Asterisk configured to play music during this time by 
adding the m to the extension, but music on hold does not work for me (I 
think mpg123 does not work on my box) so I turned off music on hold and 
removed the m.

Now I just hear silence.  How do I get the ringing sound back?

Thanks...