® TURN Server enables Sametime
clients to send audio and video communications across a NAT (Network Address Translator) or firewall when direct peer-to-peer communications are not possible. In earlier releases, this feature was called the Sametime
clients communicate directly using a peer-to-peer connection. If either or both of the clients is situated behind a NAT or a firewall and a peer-to-peer multimedia session cannot be established, the clients will utilize the Sametime
TURN Server to relay the media. The TURN Server resolves problems with media connections by using a technology called ICE (Interactive Connectivity Establishment). The ICE methodology uses STUN (Session Traversal Utilities for NAT) and TURN (Traversal Using Relay NAT) protocols to traverse a NAT and ensure that audio/video connections can be completed between users on either side. ICE determines the most logical and efficient network paths between remote endpoints, using all available network interfaces. This greatly improves the ability of clients to negotiate audio/video sessions across complex network topologies.
Parent topic: What is Sametime?