Howto:VOIP through NAT routers
Jump to navigation
Jump to search
Abstract
This page discusses NAT traversal of VOIP.
Introduction
VOIP signaling involves the exchange of IP addresses. Signaling addresses and media addresses RTP or T.38).
If the signaling crosses network borders you may get in trouble with private IP addresses. If a inside endpoint hands-out a private IP address (signaling or media) the external endpoint woun't be able to reach that IP address.