[Asterisk-Users] No ring on extensions

[Surfer Dude]

Hello,

I was wondering if anyone had any ideas to a problem I am having.  I 
have asterisk installed, and running.  All extension phones are analog 
on FXS ports.  The phones call each other and even transmit caller ID 
information but they DO NOT RING.

Here is my setup:  T400P Quad span T1 card currently connected to a CAC 
I w/ 12 channels of FXO for incoming lines and 12 channels of FXS for 
internal lines.  All the lights on the CAC indicate normal operation.  
I have an inductive amplifier and put it near the cables to try to hear 
a ring and I get nothing  while I am able to hear the pulses from 
dialing.

Is it possible that the CAC I is defective?  I bought it on ebay and it 
seems to only support span=1,0,0,d4,ami and not span=1,0,0,esf,b8zs.  
It passes self test and lights are normal.

Is it possible the emp connector and cable is causing the problem?  It 
is an old HP scanner cable with a choke near the connector.

Where is ring generated anyway?  Is it in the channel bank or is it 
exclusively in the software?  Is there any possible setting that I have 
screwed up?

Thanks so much for any help,
Jason

I am really excited about setting this system up.  I started it for 
work but now I want one at home to block unsolicited calls among other 
things.