3. The Mediation Server will perform necessary media transcoding and will send the
call to the PSTN gateway.
Configuring the Mediation Server ??? Chapter 6 215
4. The gateway will apply any local dialing rules and will pass the call to the PSTN
or the PBX.
In this fi nal exercise, you will make a call from the Communicator to the analog phone
you confi gured earlier. You will also make calls from the analog phone to the user you just
set up. You will work from Microsoft Offi ce Communicator (MOC) to make a call to the
analog handset.
1. Launch your MOC.
2. Type in 3365551201.
3. Answer the analog phone.
4. Pick up the analog handset.
5. Dial 3365551234.
6. Answer the call on your Communicator client.
216 Chapter 6 ??? Confi guring the Mediation Server
Summary
The Mediation Server enables voice connectivity between an existing PBX and an OCS
solution. When you are designing your solution you have to choose between different types
of gateways that may require a physical server to play the Mediation Server or role, or that
may incorporate that role into the appliance. The Mediation Server will enable you to maintain
a secure connection between your OCS environment and your PBX while providing SIP
integration that is secured for OCS and SIP integration that is over basic TCP for your PBX
connection.
The Mediation Server will provide:
?– Encryption/decryption for communication with OCS and the gateway
?– Media translation
?– A call fl ow that the gateway doesn??™t support
?– Remote access for users outside the network to allow for fi rewall traversal
Solutions Fast Track
Installing the Confi guration Server
?› Use the Deployment Wizard to install the Mediation Server role.
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