To call you on the phone in Engpsh, you can say:

"Can I have your phone number, please? I'd pke to call you."

Or, if you already have their phone number:

"I'm going to give you a call now."

You can also simply say:

"I'm calpng you."

If you are using a phone, you can also say:

"I'm diapng your number now."

If you are using a smartphone or a computer with a phone apppcation, you can say:

"I'm going to make a call using my phone app."