Text message forwarding (SMS/MMS) in messages suddenly not working in iOS 10
I recently, under counsel from a knowledgeable Apple-phile, re-set and re-loaded my iPhone 5 (iOS maxed out at iOS 10) after it started re-booting quite frequently while in use (too many interrupts?). Now the ability to use SMS/MMS to text others from my Mac and iPad are gone away. The Apple "fix-it" here says to go to my iPhone under settings for Messages and select text forwarding. That setting no longer exists in my iPhone, and certainly used to. What happened?
I'm sure it's one of those "simple" things ... just no sure what it is, and I need help, because it's extremely useful and one of the things I've loved about being in the Appleverse.
iPhone 5