G2-ISU3 The Hybrex G1E, G2 and GDS series Hybrid IP systems allows the connection of Industry Standard IP Phones (SIP) or soft-phones to be installed locally and / or remotely to there IP Station cards. If the Hybrex IP Phone (IP3-3000) is installed with this card, it will become as functional as a normal DK3-21c Digital Phone (Same LCD message, same LED indication pattern, etc.) allowing it to operate just as if you were in your office.