I am new to freeSWITCH, and working trough the examples from the FreeSWITCH (1.2) Book. I have the system built, and running, and everything looks OK. The system registers with my VoIP provider (voip.ms), an IP phone registers with FreeSWITCH, and I can call out to the POTS. However, when I try to call into the IP phone, I can see the incoming call information at fs_cli, but it instantly hangs up, and never goes through to the intended destination set up in dialplan/public/01_voipms.xml. The message that I get is [NOTICE] switch_core_state_machine.c:315 sofia/external/613XXXXXXX@158.85.70.XXX has executed the last dialplan instruction, hanging up Appreciate any pointers as to what/where I should be looking for the problem. Thanks for your time. William.