The only way I can think of to do it is if all phones and computers had really good voice control systems that nonetheless only understood the standard pronunciation (like early versions of Dragon dictation). The voice system makers have a vested interest in not doing that, but in understanding everyone as they talk. Arabic has tried for centuries, with the full force of a major religion, and yet still the language is splintered into mutually unintelligible dialects.
People talk how they talk, and it's constantly changing. I don't think anyone can control that.
Also, English has many pronunciation variations, and links between many words may be obvious in writing but not as much in sound (breath / breathe). English needs something more of a morphology-based writing system, not a pure phonetic representation (like Spanish).