that would be valid if it was 1999.....but its 2014 and more and more people prefer to communicate via text messages, email, and other electronic messaging means. People are using voice calling less and less. Of course he uses voice as well but most clients prefer messaging so what can you do.
It's my prefer form as well, but I know that emails can get lost or delayed, and everyone has received a text message a day or two after it has been sent...