Ok guys, I know today's the era where calling is kinda intrusive and texting is what goes great, etc etc etc...
However, that's what makes calling so ballsy and sets you apart from other guys.
Texting is good because it allows you to think and re-think about your answer to her reaction (same applies for her obviously), it will mask your nervousness, so your vocal tone is indifferent... well, it will make you appear more confident.
Calling makes you appear more bold/confident/self-assured. Also, it will increase your chances of success. Why? Simply because it takes much more confidence to reject in a text than to reject when in a call.
Moreover, if done well, it is better to seduce her. It will help you be more congruent with the image you displayed when you 2 met up for the first time.
"Fuck this guy is bold, he's calling me to invite me, I can't remember the last time when a guy did this."
Oh, and don't forget... if she says no, it is so much better to hear it than to read it. Why? Simply because you can turn it around more easily and leave her speechless.
Example: "hey [girl], a second ago I heard a girl who was talking with the same accent as you!!!"
Her: "oh really? whatever whatever whatever"
You: "yeah, what a dejŠ vu, it made me remember of you [nickname], which made me remember one other thing... you ready?"
Her: "whatever whatever whatever yes."
You: "It made me remember I have a challenge for you silly!"
Her: "oh what??"
You: "You're going to take me out and make me have fun "
Her: "ahahah I'm gonna reject it..." (shit test?)
You: "I though the challenge would convince you, but since you rejected, it seems I have to employ my considerable powers of seduction ahah are you ready?"
You: "I need to breathe in and do the pregnant respiration thing, do it with me" it's good if she agrees to do it, because it will show she's complying. If she doesn't, no problemo
Her: "tatatat inspires expires"
You: "................... .................... .......... ok that's it, I got nothing! No, come and meet me at x hours in y place. I'll be the one looking desperatly to a pokemon resembling you/anything funny"
Her: "..... yes/no".
(inspired in Californication)
So buttom line, texting for first meet and calling for the next ones IMO.