Hi

I would like to use Whatsapp with my Google Voice number ,

When I am traveling I often use local Sim cards and local numbers , so the Google Voice number would at least stay the same.

Searching Google it seems this is possible , but are there any tricks to set it up ?
Right now I do NOT have a Whatsapp account , but it seems that many people do in Europe and Asia so I would like to get one set up.

I am using a Nexus 6 running Android 7.1

Thanks for your advise