Tablet [Q] Can We Make Call & Send SMS on Dell Venue 8 3G.. PLEASE HELP..

Hi All..
I would like to know if by anyway i can use my Dell Venue 8 HSPA+ ( Regulatory Model No : T02D ) ( Regulatory Type Name : T02D002 ),
for making Voice Calls & Send SMS ? My SIM Card is inserted & im able to use 3G Data Services without any problem..
But the only drawback is Voice Calls & SMS..
Do we need to Root it or do we need to install any particular apps ?
I tried using Dailer + .. But it wont give me any option to make a call.. It keeps opening up Contacts+ in a loop..
Please Help..