I can not receive txt messages or phone calls from another Verizon user. Is there a fix for this?
Is it just one other person? Do you have issues with other people as well? If not, the problem may be with the other user. But try toggling iMessage off, then back on. Then Reset Network Settings.
Reset Network Settings Settings>General>Reset>Tap Reset Network Settings. You may need to enter your wifi passcode back in afterwards.