dear all gurus, i am looking into setting a fair size conference room system and would be most grateful for any advise, experience, recommendation on the following: 1) what is a reasonable real world max. channels conference room that 1 * server can handle? with what kinda h/w in server? 2) is it possible to have 1 conference room straddle over 2 * servers linked by IAX? if not directly, any workarounds? what kinda performance penalty if any? 3) is it possible to have 2 conference room on 2 * servers linked by IAX with inbound participants from either * going into either conference room? what i mean is which parts drain more processing resource; inbound channels? the conference room? or pretty much 50/50? 4) is there a significant difference in terms of max. conference channels on whether the inbound participants join from a T1 channel as suppose to a SIP channel? 5) if some inbound SIP participants use G.729 codecs whilst others use G.711 either DS0 or SIP, how many G.729 license i should get for the * server? how will this affect the max. channels? 6) if network speed is the only limitation (SIP participants), how many SIP inbound conference channels can a 10 Mbps symmetrical network handle? 7) is an * server suitable for this kinda application? thank you in advance for your input. gracefully yours, patrick