Freeswitch - Network list assigned to a DNS record?

I have an Android phone with SipDroid and the 3CX phone on it that I am trying to get to register and make calls. I had to get the cell phone IP and put it in a network list to get it to register.
Is it possible to point it to a DNS record instead of an IP? Either through FreePBX or FreeSwitch?
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It is via FreeSWITCH...
and I could probably expose that via the net lists for Net Lists. Is it really that important?
The downside is it's sort-of unreliable if DNS ever gets mucked up, and it won't be obvious why your calls suddenly stopped failing.
Darren Schreiber
Co-Founder - 2600hz Project - www.2600hz.org
(Formerly Lead Developer, FreePBX v3)