Mediation Server provides signaling and media
translation between the Enterprise Voice infrastructure
and a Basic Media Gateway. The Mediation Server is
deployed as a stand-alone application inside the
corporate firewall. On the Enterprise Voice side,
Mediation Server listens on one mutual TLS transport
addresses, each with a unique port that is associated
with a single media gateway. On the gateway side,
Mediation Server listens on a single TCP/IP transport
address.
The main functions of the Mediation Server are
as follows:
• Translating SIP over TCP (on the gateway side) to SIP
over mutual TLS (on the Enterprise Voice side).
• Encrypting and decrypting SRTP on the Communications
Server side.
• Translating media: G.711 on the gateway side and RT
Audio on the Communications Server side.
• Connecting clients that are outside the network to
internal ICE (Interactive Connectivity Establishment)
components, which enable media traversal of NAT and
firewalls.
• Acting as an intermediary for call flows that a
gateway doesn’t support, such as calls from remote
workers on a Enterprise Voice client.
Note: Mediation server cannot
co-exist with Communicator Web Access, SE server, EE FE,
Edge Servers etc...
