but I can not get my Sipura ATA to register if I comment out the accept-blind-register in sofia.conf.xml Here is a blind register of my Sipura ATA: http://pastebin.ca/834668 and a regular register with accept-blind-register: http://pastebin.ca/834676 My directory.xml (the user id and password matches the Sipura ATA's user id and password) <user id="100"> <params> <param name="password" value="pluto"/> </params> <variables> <variable name="tlf" value="100"/> </variables> </user> <user id="140"> <params> <param name="password" value="pluto"/> </params> <variables> <variable name="tlf" value="140"/> </variables> </user> I find it unlikely this is a bug in Freeswitch, as this should be a very common configuration (I cannot be the only one registering my ATA's). But I can post a ticket to Jira if you want. The same happens with my PAP2 amd Cisco 7960 sip phone. Ivan