En-gk-vsx
Polycom VSX 7000 videoconference endpoint
System->Admin Settings->Network->IP->H.323 Settings: go to second page
Use Gatekeeper: Specify H.323 Name: name (pl. representing a person or institution) H.323 Extension (E.164): extension number (see step 1) Primary Gatekeeper IP Address: fz-gk.vvc.niif.hu