Suppose I have a switch with DNS hostname of "myswitch.company.com" and an IP address of 10.11.12.13. If I want to allow this switch's phones to call FreeSwitch, I have to update the acl.conf.xml file with an entry that looks like this: <list name="domains" default="deny"> <node type="allow" cidr="10.11.12.13/32" /> </list> What I would like to do is use the DNS hostname of the switch instead. So the above entry should look something like this: <list name="domains" default="deny"> <node type="allow" host="myswitch.company.com" /> </list> When I try the above, the calls are rejected by FreeSwitch. When creating its Access Control List, is there a way to tell FreeSwitch to do a hostname lookup when hosts are specified? Regards, Steve -- This e-mail (including any attachments) is for the sole use of the intended recipient(s) and may contain information that is confidential and/or protected by legal privilege. Any unauthorized review, use, copy, disclosure or distribution of this e-mail is strictly prohibited. If you are not the intended recipient, please notify Mitel immediately and destroy all copies of this e-mail. Mitel does not accept any liability for breach of security, error or virus that may result from the transmission of this message.