Advice Needed

Truth2016

Hi,
At the moment, I have one personal Iphone an IPad and an Old laptop. I work from home and am finding it tough to switch off. I get emails late at night, weekend etc. So I was thinking about getting a second mobile number, to use for business as it a new business only a few people have my personal number so far.

To be honest, the second phone idea i dread a little as being male, carrying around two phones will be a pain.

I use WhatsApp/Viber a lot to contact clients. So I did just consider getting a sim and putting it into an IPad and using that number as my business number. Though if someone calls me, it would be a bit awkward to talk on the IPad.

So I would like some advice, before going out to buy a second phone, upgrading my iPad and buYing a new MacBook. A MacBook is needed as while I can do most of my work on an IPad, I simply can't do everything I need to do.
Has anyone else got a second phone ? How do they find it? My hope would be that when I come home, I switch off the work phone, but do you find you do that ? Are there any good dual sims out there ? Or any phones that can switch from personal set up to business set up ?

Is syncing the MacBook and IPad and business IPhone a good idea ?

Truth2016

Would an option be to keep my personal number and create a VOIP on the iPad and laptop, to use to communicate via WhatsApp and Viber ? Is that even possible ?