Category:Cisco Systems -> Voice
Here’s a brief reference to NAT traversal. NAT traversal is used to provide SIP connectivity through NAT for making a voice or video call.
The following diagram is presented as is for a brief reference:
The more detailed description of NAT traversal with nice visuals you can find in the following document downloaded a while ago from some web resource: File:Solving_Firewall NAT_Traversal.pdf
By privilege15