I have a situation I am hoping someone can point me in the right direction. We have a Lync system up and running just fine. The problem is that some users call internationally as well as users in other countries calling from our system in the states. I am trying to see what is involved with have international sip trunks added to my gateway and just have international calls for that country go out that gateway. Does anyone have or know of some good documentation that can assist me with this deployment.