O'Reilly logo

Microsoft® Lync® Server 2013 Unleashed Second Edition by Randy Wintle, Alex Lewis, David Ross, Tom Pacyk

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

A/V Edge Service

The A/V Edge Service is responsible for securely relaying audio and video media among internal, external, and federated contacts. The A/V Edge Service uses the Interactive Connectivity Establishment (ICE), Simple Traversal Utilities for NAT (STUN), and Traversal Using Relay NAT (TURN) methods to enable endpoints to communicate from nearly any network connection with Internet access.

When possible, endpoints attempt to use a peer-to-peer connection for media streams, but when an endpoint is behind a NAT device such as a home router, the A/V Edge role can act as a relay point between the endpoints to facilitate communication. The A/V Edge service uses a combination of HTTPS port 443 and UDP port 3478 to negotiate and provide the ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required