I have installed and tested chan_h323, chan_oh323 and chan_ooh323. Not sure if any of them have gatekeeper capabilites. I have been able to receive calls and make. Im not familiar with H323 and friends, but i have read that for "register" capabilities is needed a gatekeeper. chan_h323 wroten by JarJar, explicitly say that does not have gatekeeper capabilities, but not sure about the others. I have tried to register some h323 softphones but have not succeeded. What do you guys are using? may be GNU GateKeeper ? Any guidelines to follow? Best Regards -- "Su nombre es GNU/Linux, no solamente Linux, mas info en http://www.gnu.org"