I have a Cisco 3825 with a high-density voice module
Some of the phones that hang off this card can make calls, but will not ring when called: I can actually feel the hammer in the analog phone trying to ring, but it never hits the bell. Looks like it might be a voltage issue
The ports are configured thus:
timeouts initial 60
timeouts interdigit 60
timeouts ringing infinity
dial-peer voice 5220 pots
Looking at the output when the phone is called:
1/0/18 -- fxs-ls up up on-hook ringing y
The analog phone is 400-500 feet away from the router
Does this look like a voltage problem?
Is there something I can do in the router to up the voltage?