Which data sim should I use to use my tablet as a phone?

[AC Question]

Which data sim to use to use tablet as phone

Hello

I am about to buy the Tabs 8.4 samsung tablet - 4G.
The manual says ( page 72 etc ) that phone calls can be made from it.
I intend to use pay as you go - not monthly.
I understand that "deals" offer tablet data sims, but I am concerned that these will not allow the phone to be used.
Thinking this way on the basis that "phone " sims offer, minutes, texts and data.
Am I right in thinking i should buy "phone" sims, or will they not work with tablets?
Please don't discuss Side Sync. My present phones provider O2 does not provide cover where i want to use the tablet; EE does and so it is their sims I would use. If the tablet can do so.

Ideally, I'd like a galaxy tab s tablet owner who uses the phone facility to reply and confirm which sim they use.

This relates to the UK

Thanks for reading