I am using Nu Fone Network's h323 drivers. I can place H323 calls using following in extensions.conf file, exten => _1732.,1,Dial(H323/${EXTEN}@192.168.1.2) If I need to use h323.conf to do the same I cannot configure h323 to do the same. I get everyone is busy message and I do not see IP packets being generated by * trying to communicate to 192.168.1.2. Can someone point out what I am doing wrong here. extensions.conf ----------------------- exten => _1732.,1,Dial(H323/${EXTEN}@h323-out) h323.conf -------------- [h323-out] type=h323 host=192.168.1.2 In addition in the * console, when I issue following command I do not see anything. Is there something that need to be done with codec registration for asterisk ? host01*CLI> h.323 show codecs host01*CLI> In addition I see following H323 related messages during asterisk start in the Console. == Creating H.323 Endpoint WARNING[1074494944]: File chan_h323.c, Line 216 (build_alias): Keyword 203.115.15.1 does not make sense in type=h323 WARNING[1074494944]: File chan_h323.c, Line 216 (build_alias): Keyword all does not make sense in type=h323 WARNING[1074494944]: File chan_h323.c, Line 216 (build_alias): Keyword g729 does not make sense in type=h323 WARNING[1074494944]: File chan_h323.c, Line 216 (build_alias): Keyword gsm does not make sense in type=h323 WARNING[1074494944]: File chan_h323.c, Line 216 (build_alias): Keyword ulaw does not make sense in type=h323 WARNING[1074494944]: File chan_h323.c, Line 216 (build_alias): Keyword alaw does not make sense in type=h323 == Adding alias "slt-h323-o" to endpoint == Registered channel type 'H323' (The NuFone Network's Open H.323 Channel Driver) == H.323 listener started Thank you, SamW