Can I use your phone?

我可以用一下你的电话吗？

《牛津词典》

Can I call you on the phone?

我可以给你打电话么？

youdao

And can I have a phone number—the best number to get you on?

能给我一个电话号码吗？—最好能找到你的电话号码。

youdao

"Because it's easy and cheap and every farmer can basically get their own phone or borrow someone's down the road, I think it's increasingly a way for them to gain access to things they didn't have before."

VOA: standard.2010.07.28

I call them on the phone, and we meet up in person as much as we can.

我给他们打电话，而且我们尽可能多见面。

用社交网站找到的人 - SpeakingMax英语口语达人

On the phone I can hear nuances in a voice that a text message totally lacks like (I lived in LA in the late 70s so can speak some Valley Girl).

FORBES: Young People, Stop Just Texting Me and Give Me a Call Once in a While PLZ! Part Deux

You can do simultaneous voice and data, so if I'm on the phone, I can still browse the Web.

NPR: Google's Android Makes Phones Act Like PCs

But again, you could pick up the phone, just like I can pick up my phone in the office and relay you, April.

WHITEHOUSE: Press Briefing