T-mobile name id vs Google caller id

Does anyone have experience with both? Wondering if with the new dialer and built in id if I still need name id

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AT&T LTE 9.7 " Tab cell phone caller and 4g/LTE signal switch?

Got my LTE version from AT&T version 2 days ago. Is there anyway to install the samsung caller app to make phone calls other than using hangouts or whatsapp ? Also trying to figure out to keep data but using just 4g instead of LTE to keep data down . On my edge + phone I can put a dialer code in to get to special settings . Anyway doing this ? Thank you! !!!

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