For now and for Tablet.
Hardware and resolution for Android 4.4 and 99 percent of all apps quickly enough. Display could be a bit brighter, with an antireflection film, it is however.
For telephone: to utilize the telephone function you need the A3500HV, but here you can buy the A3500H a 10 sekündige goggle search reveals a the two devices up to the software are identical.
What do you have to do? Your rootet your Tab, install custom recovery and then flashed a backup of a HV unit. Then her phone did work. Instructions can be found at XDA:
Hope this helps.