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Microsoft® Lync Server 2010 Unleashed by Tom Pacyk, Andrew Abbate, Alex Lewis

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Integrated Mediation Server

Previous versions of Communications Server required the integration of dedicated mediation servers to provide signaling and media translation between the Enterprise Voice infrastructure and a Basic Media gateway. Previous versions provided various functions such as

• Translating SIP over TCP to SIP over mutual TLS

• Encrypting and decrypting SRTP on the Communications Server

• Translating media (G.711) on the gateway to RT Audio on CS

• Connecting external clients to internal Interactive Connectivity Establishment (ICE) for media traversal of NAT and firewalls

• Acting as an intermediary for call flows that aren’t supported by a gateway, such as remote worker calls on an Enterprise Voice client

Lync Server now integrates ...

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