One dating and relationship coach has come up with a list of the seven biggest misuses of texting to avoid in dating, and I agree with just about all of it. He maintains that short text conversations when dating are fine (think: "I'm at the restaurant," or "See you at 7!") but because it's emotionless and can cause misunderstandings, there are times it shouldn't be used — specifically to ask someone out or cancel a date.
Find out how not texting can actually help your relationship after the break.
But it goes both ways. Not texting can also protect you, the potential texter. Think about it: when someone doesn't return a text, how many times do you check your phone to see if he's responded? I've spent days waiting for a return that never came.
The takeaway: calling is scary, but it's direct, to the point, and personal. I'd take a phone call over an emoticon-filled text (presumably to try and convey emotion) any day. Besides, most people prefer it!