Can I use FQDN (Fully Qualified Domain Name) in place of IP address?
Yes, you need to initialise DNS parameters. Click on the ‘TCP/IP’ button (‘Initialize Emulators’ panel of the IP profile editor) followed by the ‘resolv.conf’ in order to enter a valid domain which will be used in the event of the Zumara not being able to parse or translate a valid IP address from the domain name provided in the ‘SIP Authentication’ panel.