Phone Call drops New Samsung 8

<p>I got my upgrade on my contract to a S8. Since i got the phone call drop from incoming or outgoing on my cellphone after 1 to 2min of speaking. It is every call not selected calls. Have logged the complaint but no solution. This must be a network problem and not the new phone? </p> <p>Can someone phone me to tell me what the solution will be regarding this immediately. I cant conduct business like this. </p>