<p>I think it's better to email than to call. These are busy people who might be too busy to take your call at the moment you decide to dial their number. Whereas with email, they have more time to think of an answer to your questions. Also, if you want them to be more familiar with your name, then email is definitely the way to go, because they will get used to seeing your name typed out, which is how they will see it when you submit your application. Whereas if you call and say "my name is" they will hear your name, then forget it as they continue with the rest of their work.</p>