Why can't dogs recognize human voices on the phone?

Question

Animals have much better hearing than us, so the experts say. I can recognize my moms voice and my sisters when they call with no problem at all. I even know my uncles voice whom I hardly ever talk to by phone. So why if dogs hear better than us do you think my dog doesn't know it's me on the phone?

Answer 1

I'm sure dogs recognize voices by the vibrations. Everyone's voice sounds different over the phone, thus, different vibrations.

Answer 2

because it cant smell or see and phones change the voice a bit and cant see u around.