We have a running Asterisk on a small server (RH 9.0) und were able to make calls via SIP. Since the quality was rather poor (one of us has only a 150/75 kbps DSL connection, iLBC did not work(?)) we tried to setup clients (FireFly) and Asterisk for connections via IAX. In some point seems to be a mistake. Asterisk says: -- Executing Dial("IAX2[83022777@83022777]/2", "IAX2/83022777@mpolpbx.dynalias.org") in new stack May 24 16:56:27 NOTICE[1133718080]: chan_iax2.c:4700 socket_read: Host 217.162.123.197 failed to authenticate as 83022777 May 24 16:56:27 WARNING[1133718080]: chan_iax2.c:4534 socket_read: Call rejected by 217.162.123.197: No authority found May 24 16:56:27 NOTICE[1133718080]: chan_iax2.c:1038 iax2_destroy: Avoiding IAX destroy deadlock -- Called 83022777@mpolpbx.dynalias.org -- Hungup 'IAX2[217.162.123.197:4569]/4' == No one is available to answer at this time May 24 16:56:37 WARNING[1209214400]: pbx.c:1836 ast_pbx_run: Timeout, but no rule 't' in context 'from-iax' -- Hungup 'IAX2[83022777@83022777]/2' externsions.conf looks like this: [from-iax] exten => 83022266,1,Dial(IAX2/83022266@mpolpbx.dynalias.org) exten => 83022266,3,Hangup exten => 83022777,1,Dial(IAX2/83022777@mpolpbx.dynalias.org) exten => 83022777,3,Hangup I guess the problem lies in extensions.conf but was not able to figure out the correct seeting. Any hints? Thanks Reto