Does anyone work in telecom?

I'm looking for someone who works in the telecom business; sets up PBX's, VoIP phones, knows what a T1/E1 line and a DS0 channel is... etc.

If you happen to work in the telecom business, or know someone who does please let me know!

:thanks:

What are you wanting to know? I've worked on a couple of those and know a little bit about some others.