Super helpful - thanks @JaredBusch
We typically recommend creating multiple trunks with our IPs so that you don't rely on DNS. In older versions of Asterisk (we still have users who use 1.4!), DNS would cause Asterisk to crash. Additionally, some people use less-than-awesome DNS solutions that either take a long time to propagate or are just providing inaccurate results.
That being said, if you are feeling ambitious and want to try an unpublished (but supported) technique, you can use srv.skyetel.com instead of term.skyetel.com. It uses SRV records instead of A records. We keep this unpublished to encourage people to use our IPs - SRV causes a lot of problems for inexperienced administrators, but some PBXs require it when using multiple IPs like we do.