I'm looking for opinions about the best ways for providers and hobbyists to connect, while being very discreet. Since it seems more providers want to text, I have adopted a burner phone to keep those messages private but to be able to communicate more frequently and effectively before a meeting. Although the phone is locked and private, I'm increasingly concerned about my additional phone being questioned as "a backup." ie. "Why do you need that old phone?" Is there a way to have a separate line on your current smartphone that can be locked and hidden, so those numbers and communication can be private on my everyday smartphone?