Thanks for all the insight. With this info and some Google research, let me see if I have this right:
I have a District of Columbia telephone number which rings in Virginia. My outgoing calls also appear to be originating from DC to anyone I call (caller-id).
From what y'all have said, it appears that a dedicated T1 line goes from the central office where the DC exchange is to my local central office here in Virginia.
At the local office, the T1 is divided and one channel is connected to my telephone.
The rest of the T1 bandwidth can be sold to or used by others.
Dumbed down to layperson understanding (that's me), is this the general idea?
Last edited by Captain Crunch; 10/13/12 01:34 PM.
