looking for a carrier that allows me to browse internet and make a phone call at the same time.

I had this question after viewing Phone call and internet.


before I switch carriers from sprint to
verizon, att, tmobile

which
verizon, att, tmobile
works with both

all three?

not my phone; any phone in general

I am looking for a carrier that allows me to browse internet and make a phone call at the same time.