Whats the difference between a trunk and station card?
A Trunkline is the service that provides the local and long distance calling (think dial-tone) A station is the phone set. In a traditional PBX, trunklines are terminated on a trunk card, usually 4 or 8 circuits. Stations are terminated on a station card, usually 8, 16 or 24 circuits. It’s up to the PBX to electronically connect a trunkline circuit to a station circuit to commence an outside call. For an intercom call, the PBX connects two station circuits.
