Can I call you back in just a few minutes?
Can I get you to call us back in, say, ten or fifteen minutes.
I'll call you in five minutes from my office with the details.
He was calling me every day, sometimes twice in 20 minutes.
You want me to think it over and call again in fifteen minutes?
I'm going to call you again in ten minutes, from some place else.
She called back in 10 minutes and said: 'You don't understand.
They told him to call again, though, in five minutes.
"Call back in twenty minutes and see if I'm still around."
He called me back in forty minutes to say no.