First side:

braserv*CLI> iax2 reload 
  == Parsing '/etc/asterisk/iax.conf':   == Found
    -- Registered IAX2 to 'xxx.xxx.xxx.245', who sees us as xxx.xxx.xxx.17:4569 with no messages waiting

braserv*CLI> 



============================

On the other side:

quadser*CLI> iax2 reload 
  == Parsing '/etc/asterisk/iax.conf':   == Found
[Sep 30 23:34:01] NOTICE[6198]: chan_iax2.c:11938 iax2_poke_peer: Still have a callno...
[Sep 30 23:34:01] NOTICE[6198]: iax2-provision.c:551 iax_provision_reload: No IAX provisioning configuration found, IAX provisioning disabled.
[Sep 30 23:34:02] NOTICE[6102]: chan_iax2.c:11236 socket_process: Registration of 'rcitaly' rejected: 'Registration Refused' from: 'xxx.xxx.xxx.17'
[Sep 30 23:34:52] NOTICE[6111]: chan_iax2.c:11236 socket_process: Registration of 'rcitaly' rejected: 'Registration Refused' from: 'xxx.xxx.xxx.17'
[Sep 30 23:35:42] NOTICE[6105]: chan_iax2.c:11236 socket_process: Registration of 'rcitaly' rejected: 'Registration Refused' from: 'xxx.xxx.xxx.17'
[Sep 30 23:36:32] NOTICE[6109]: chan_iax2.c:11236 socket_process: Registration of 'rcitaly' rejected: 'Registration Refused' from: 'xxx.xxx.xxx.17'
[Sep 30 23:37:22] NOTICE[6104]: chan_iax2.c:11236 socket_process: Registration of 'rcitaly' rejected: 'Registration Refused' from: 'xxx.xxx.xxx.17'
[Sep 30 23:38:12] NOTICE[6107]: chan_iax2.c:11236 socket_process: Registration of 'rcitaly' rejected: 'Registration Refused' from: 'xxx.xxx.xxx.17'
[Sep 30 23:39:02] NOTICE[6108]: chan_iax2.c:11236 socket_process: Registration of 'rcitaly' rejected: 'Registration Refused' from: 'xxx.xxx.xxx.17'
[Sep 30 23:39:52] NOTICE[6102]: chan_iax2.c:11236 socket_process: Registration of 'rcitaly' rejected: 'Registration Refused' from: 'xxx.xxx.xxx.17'
[Sep 30 23:40:42] NOTICE[6106]: chan_iax2.c:11236 socket_process: Registration of 'rcitaly' rejected: 'Registration Refused' from: 'xxx.xxx.xxx.17'
quadser*CLI>