yep come to think of it all but one of my IP sites have BRI's or PRI's.

I have a small site with 20 ITP's with analouge trunks I will have to check their call quality out next time I'm there. I didnt notice any problems with call quality at the time.

However I had some other more pressing issues at the time like a faulty MCP causing the trunks to drop off during calls so holding a call was the first priority on that job.

They already had the PSTN trunks with their old system so I used them again on the 7200.
It probably wouldn't hurt to change them over to ISDN trunks anyway.