DMC (alienware version, AMC): internet not working while calling

Hi, 

i'm using Alienware Mobile Connect on my Alienware 17 R5 and it works and do everything its supposed to, but there is an issue:

when i call someone or i receive a call, while i'm talking internet connection in the PC simply stop working.. until i hang up

this is a problem 'because i'm working connected to a VPN and in remote desktop and while calling i can't do nothing

is there a solution?