how much traffic between sites...nortel makes a 4 port ip gateway that converts ip call out to 4 analog trunks that can be used on any device that uses analog lines...upgrade to 6.1 and install 3rd t1 and split it out to the other 2 sites.
Pat Guido
NEXTIRAONE
Pat.guido@nextiraone.com
Formerly Nextira, formerly Williams Communications, formerly Wiltel, formerly Nortel networks, formerly Northern Telecom, formerly, Nynex meridian systems formerly Northern Telecom.