Can not use internet while on a call

While on a phone call I can not use my internet I have a Coolpad cell phone under sprint

Originally Posted by Android Central Question

While on a phone call I can not use my internet I have a Coolpad cell phone under sprint

My understanding is that Sprint uses CDMA technology which doesn't allow for using internet data at the same time as a cell phone call. I know that GSM does allow for simultaneous use (as with AT&T) service.

Some phones support that feature while some do not.

Which phone?
Which version of android?
Which carrier?