Update based on Ting's guidelines here:
help.ting.com/hc/en-us/articles/205428698-GSM-Android-APN-Settings
Change-Id: I5de6b7a0b0bab9880e02122a7d76b883c2558cec
(cherry picked from commit 655d8d6e)
(cherry picked from commit 70bca538)
(cherry picked from commit 26b03fcc)