I don't use MMS, but from what I recognize, This is able to only function in distinct circumstances. Like when you're are all on iPhones or all are on phones that assist the RCS messaging system. Fundamentally if you find yourself not actually utilizing the MMS function. Tello FAQ says https://hectortnhau.jts-blog.com/36686074/the-basic-principles-of-temp-phone-number-non-voip