I'm in the USA, and I use Google Voice... And I have a google voice number... so, I should be all set in this respect. Thanks.I think you really need a Lenovo or Macbook.
On the Chromebook, you can use:
Google Voice (in the US, you can use it to make AND receive calls)
Google Hangout / Chat (voice and video chat)
On a Macbook or Windows, you would have to install the plugin. But on the Chromebook, they are built-in. Just turn on the Chromebook, sign in to your account, make a call / receive a call / start a video or text chat. No setup, no downloads, nothing to install
LD calls within US and Canada are free. You can make international LD calls as well. If you're lucky enough to live in the US of A you can port your number over to Google Voice and take advantage of their awesome features.