As of today , February 2022 , we have Cellular Tablets that can make telephone calls and receive telephone calls just like an Android Smartphone . 

 

Hopefully , in the not too distant future , we may have a              15.6  inches  4G LTE Cellular Laptop ( foldable 360 degrees  or  detachable )  and   15.6  inches  5G  Cellular Laptop ( foldable 360 degrees  or  detachable ) , too , with  phone functionality ( make telephone calls  and receive telephone calls using a  Cellular Laptop  )  just like an  Android  Smartphone .  

I hope there is a   hardware/software  manufacturer  who are not afraid to be the first to manufacture such  a  device , to manufacture such a  machine , to manufacture   a   15.6 inches     [ Laptop/Tablet/Smartphone (All-in-ONE)  with built-in   DVD-RW Player ]   machine .

 P.S.   In my opinion ,  

             for a real  Laptop/Tablet/Smartphone

           ( ALL-in-ONE )  machine  to be  successful ,

          for a  real  Laptop/Tablet/Smartphone

          ( ALLin-ONE )  machine  to make their way

          into the real world ,

          for a  real  Laptop/Tablet/Smartphone

          ( ALLin-ONE )  machine  to  " take off " ,

          the

          chip/SoC   manufacturers ,

the  Cellular Laptop   manufacturers , the  OS

            providers ,  the   carriers/telcos ,   MUST

             COLLABORATE WITH EACH  OTHER  IN   ORDER

                   TO PROVIDE   THE  CAPABILITIES  SO  THAT 

             ALL    CELLULAR  LAPTOP ( 4G LTE or  5G )

•       CAN OPERATE  LIKE  A   4G   SMARTPHONE , 

        CAN  OPERATE   LIKE    A   

•      5G  SMARTPHONE .