Features Page 159 of 910
IP Line Description, Installation and Maintenance
Figure 34
dnldFailShow command output

NAT Traversal feature

Network Address Translation (NAT) provides the following benefits:
• the ability to network multiple sites with overlapping private address
ranges
• added security for servers on a private network
• conservation of public IP address allocation
A NAT device (router) exists between a private network and a public
network. The NAT device maps private addresses to public addresses.
With the NAT Traversal feature, several IP Phones are now supported behind
a single Cone NAT router with, or without, Virtual Private Network (VPN)
capabilities. This support enables large-scale deployment of Voice over
Internet Protocol (VoIP) in teleworking and Small Office/Home Office
(SOHO) environments.