For instance, Client A has an IP of 10.0.0.1 and Client B has an IP of 192.168.0.1 and they exist on completely different networks connected by a NAT firewall over the internet. NAT is a problem when trying to connect two clients together over a third party network because we need a way of being able to transport the data packets from one peer to another and when behind a NAT firewall we cannot do this because both peer’s IP addresses change as they pass through the firewall. When I talk about media establishment over the internet, what I really mean is media connectivity when a client is behind NAT. With Teams it is harder to see as the packets are encrypted with a certificate, but there are ways in which you can view this. However, if you are new to Microsoft Teams with little or no UC heritage, then this post may be of value to you.Įven though Teams uses its own protocols over https to communicate, underneath the bonnet of these packets still uses the underlying protocols and principles of media connectivity over the internet.

If you have used VoIP over internet solutions in the past then this will be no surprise.

Wireshark ip skype