Hi At first thanx to Simon Horne, for his suggestions,Now I have been able to setup GKs at three levels using parent-child relationship as follows: EP -> OriginatingGK -> Parent GK-Level-1 -> Parent GK-Level-2 -> terminating GW Parent GK at level 1 is parent of Originating GK and is child of parent GK at level 2. Now ARQs and ACFs follow heirarchy, like OriginatingGK sends ARQ to Parent GK-Level-1 and it responds back with ACF, Parent GK-Level-1 sends ARQ to Parent GK-Level-2 and it responds with ACF accordingly. Now I tried to make ParentGK-level1 as a child to two parents, so as to route the call requests according to prefix dialed, something like: Parent GK1-Level-2 -> TGW1 / EP -> OriginatingGK -> Parent GK-Level-1 \ Parent GK2-Level-2 -> TGW2 I added two end points in ParentGK-level1 as [RoutingPolicy] default=parent [Endpoint] Gatekeeper=xx.xx.xx.xx Type=Gateway H323ID=level1parent_1 Prefix=1 TimeToLive=900 RRQRetryInterval=10 [Endpoint] Gatekeeper=yy.yy.yy.yy Type=Gateway H323ID=level1parent_2 Prefix=2 TimeToLive=900 RRQRetryInterval=10 Where xx.xx.xx.xx AND yy.yy.yy.yy are two level 2 Parent GKs. I hope it makes sense what I am trying to do, like calls of Prefix 1 should be routed to xx.xx.xx.xx and calls of Prefix 2 to other. What happens is ParentGK-level1 does not get registered with second parent, and even it does not route the calls properly. Is it possible what I am trying to do? Regards ------------------------------------------------------- This SF.Net email is sponsored by xPML, a groundbreaking scripting language that extends applications into web and mobile media. Attend the live webcast and join the prime developer group breaking into this new coding territory! http://sel.as-us.falkag.net/sel?cmd_______________________________________________________ Posting: mailto:Openh323gk-users@xxxxxxxxxxxxxxxxxxxxx Archive: http://sourceforge.net/mailarchive/forum.php?forum_id?49 Unsubscribe: http://lists.sourceforge.net/lists/listinfo/openh323gk-users Homepage: http://www.gnugk.org/