Thanks for the info. I thought RAS had something to do with Radius. It turns out my endpoints do support RAS, so I've set this and certain things seem to work like I expect. You can't call them unless you're registered with the gateway, so that's good. And calling between registered endpoints works as well. However, I want them to be able to call non-registered endpoints. When I try (making sure to call the IP address and not the alias of the unit) to call an unregistered endpoint with a registered endpoint, I get a message that says that it can't connect, that the unit isn't registered with the gatekeeper. This is what the .9 Java GUI gives: ARJ|xx.xx.xx.xx:1720|yy.yy.yy.yy:h323_ID|brandon:h323_ID=8175551212:dialedDigits=brandon:h323_ID=8175551212:dialedDigits|false|calledPartyNotRegistered; (where xx is the registered caller's IP, and the recipient's is yy) Here's my gatekeeper.ini, with all non-empty sections: [Gatekeeper::Main] Fourtytwo=42 Name=OpenH323GK [RoutedMode] GKRouted=1 H245Routed=0 CallSignalPort=1720 CallSignalHandlerNumber=1 RemoveH245AddressOnTunneling=0 AcceptNeighborsCalls=1 AcceptUnregisteredCalls=0 SupportNATedEndpoints=1 DropCallsByReleaseComplete=1 [RasSrv::ARQFeatures] ArjReasonRouteCallToSCN=0 ArjReasonRouteCallToGatekeeper=1 CallUnregisteredEndpoints=1 RemoveTrailingChar=# [RasSrv::RRQAuth] mdb=sigip:yy.yy.yy.yy:1720 brandon=sigip:xx.xx.xx.xx:1720 #default=confirm #default=deny [GkStatus::Auth] rule=regex regex=^(10\.8[0-9]\.[0-9]+\.[0-9]+)$ [Gatekeeper::Auth] AliasAuth=required;RRQ default=allow [CTI::Agents] VirtualQueueAliases=CC RequestTimeout=10 -----Original Message----- If your endpoints support RAS then you can set the following rule to allow only the endpoints that you want registered to the gatekeeper. [Gatekeeper::Auth] AliasAuth=required;RRQ default=allow [RasSrv::RRQAuth] H323ID=sigip:xxx.xxx.xxx.xxx Then based on the H323 Alias IDs they can call each other. But if your endpoints do not support RAS, then you will need to use the latest version 2.09 and 2.2 which supports UnregisterEndpoint Authentication through Radius. ------------------------------------------------------- SF.Net email is sponsored by Shop4tech.com-Lowest price on Blank Media 100pk Sonic DVD-R 4x for only $29 -100pk Sonic DVD+R for only $33 Save 50% off Retail on Ink & Toner - Free Shipping and Free Gift. http://www.shop4tech.com/z/Inkjet_Cartridges/9_108_r285 _______________________________________________________ List: Openh323gk-users@xxxxxxxxxxxxxxxxxxxxx Archive: http://sourceforge.net/mailarchive/forum.php?forum_id?49 Homepage: http://www.gnugk.org/