Guys, I want to know if it is possible to used Asterisk as a SIP gateway for a legacy PBX. What I am thinking is to use Asterisk with a PRI card and connect to the PRI interface on the PBX to provide SIP service. Is this physical connection possible? I am not very familiar with the PRI hardware and how it can interconnect so I am not even sure if what I am thinking is possible for a physical standpoint without getting into the programming issues.
Any advice appreciated.