disable iphone notifications from showing on laptop

How can I disable phone call notifications from showing up on my laptop? I still need the use of facetime on my iphone and ipad, I just do not need my laptop ringing and interrupting others at work. As long as its open, it becomes a unnecessary distraction. I need the use of my laptop so it must be open. Research on this topic seemed to have an answer of disabling facetime on my iphone. I need to use facetime while at work. Any ideas?