In the same way that Hillary used a hammer on her cell phones, I would not be opposed to someone in the White House using a hammer on Trump's fingers every time he reached for the phone.
It seems most people -- Democrats, Republicans and independents alike -- believe that Trump would be better off if he simply stopped tweeting. He has no doubt been told to do so many times by people on his staff but he persists.
I attribute that to his intense narcissism. While it is not rational for a person in Trump's circumstances to tweet the things he does, it makes perfect sense to a compulsive narcissist who craves adoration and believes everything is about him. Trump cannot not attack his enemies. He cannot not lie when a lie makes him feel better in the moment. In the end, it will be this narcissism that will bring him down.
Trump boasted on the campaign trail that he hires the best people. With his pick of attorney Ty Cobb to manage the response to the Russia thing, Trump may have finally gotten around to doing so in this area. By all accounts, Cobb is the man for this job. What remains to be seen is whether or not Trump will follow Cobb's guidance, which is likely to include "stop tweeting and stop talking about the Russia thing."
So far, Trump has shown he has more confidence in his instincts than his attorneys. Maybe it will be different with Cobb but I doubt it.