[Asterisk-Users] TE405p -- loopback for the phone company?

[Eric Lyons]

Feeling once again like an idiot, I come to the list for help...

While my carrier (MCI vi PRI, fwiw) was trying to diagnose a problem, they asked me to put my interface in loopback -- and I 
couldn't figure out what they meant or how to do it.  I've plugged a loopback *connector* into my 405p and tested it internally, but 
they wanted something that, apparently, looped back _their_ signal.

What the?

I got zttool running and selected "loop" on the interface, but it didn't seem to do what they wanted (nor could I tell that it did 
anything at all).  Many googles for zaptel and loop didn't turn up anything useful.

Eric.