Well it doesn't really matter how brief you keep your phonecalls with her... Hell, I've had half an hour phonecalls and they work out great.
Everything works out great as long as it stays interesting, I chatted with one girl on the phone for half an hour about how we were hitting on each other, but in the end I just said something like "nah, you wouldn't have any chances to get me...

" which just caused her to think about me for the rest of her night.
Well fluff talk, even on the phone, without attraction is more like digging your own grave in the LJBF-zone -which you will fall in later on as you get closer to her.. Add some humor m8

humor is the best ingredient avaible for picking up women! Having her laugh on the phone is always a good sign.
And I'd say you called a bit too late, 6 days is a LOT of time.. Have it 15min-2days next time, and you will have far more better results to get out with the girl.
P.s. Don't confront her about her flake the next time your on the phone with her, otherwise she will just avoid speaking with you on the phone.
Her: sorry i'm going out with some girlfriends tonight
you: well I never said that you could come out with me

!
Just act as if things aren't a big deal.. If she flakes on you, were you the man who got upset and waited..., OR were you the man who called up another girl and had a great time?!
