WAP - how to pronounce it

Hello everyone,
I'd just like to kindly ask about the pronounciation of the "WAP", Wireless Application Protocol. How should one say it - "Double-U Ay Pee", reading each letter separately, like in WWW - World Wide Web - "Double-U Double-U, Double-U", or is the pronounciation "Wap", like it's one word, correct...?

greets,
j.