We have 4 T1 PRI's coming into our router. I've had complaints on the floor that random people get dropped calls, or where the other end can't hear them, and dial tones everytime they talk. I've called my own number numerous times and noticed that it's only on a specific interface out of the 4. I don't see any errors, collisions, interface resets, or runts. The interface looks clean. How am I to prove this indeed is an issue with this interface? The only thing I can think of is that that interface is going bad. Any thoughts?
