Kanye wants Kim Kardashian to call him!!

Forget marriage proposals and alleged plans to have children together. Just how serious are things between Kanye West and Kim Kardashian?

According to an Us Weekly source, the rapper "doesn't like to be tied down by technology" and did not own a cellphone... until his new girlfriend came along.

"It frustrated Kim. She had to call him through a bodyguard," the source said of Kanye living in the 1980s, adding that he finally caved, joined the 21st century and purchased a phone.

But "he only uses it for Kim," the mole claims.

And, we presume, to call the paparazzi and let them know where he and Kim will "dating" that day.