Medias Mediatrix 1204, Reference Manual

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Mediatrix 1204 251
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H A P T E R
22
Telephony Features
This chapter explains how to set the telephony variables of the Mediatrix 1204 to define the way the unit
handles calls.
Call Processes
The Mediatrix 1204 is a gateway between the SCN world and IP world.
If you pick up a telephone connected to the SCN and dial the number corresponding to one of the SCN lines
or analog PBX extensions connected to the Mediatrix 1204, the unit plays a second dial tone. You can then
dial the number to reach on the IP side.
If you make a call from any endpoint connected on the network, you can dial the number to reach. The
Mediatrix 1204 contacts a SIP server such as the IP Communication Server. The server then looks through its
internal database to translate the dialed number to a corresponding IP address. If none exists, the server
locates a gateway (which can be another Mediatrix 1204) for placing the call on the SCN.
Types of Calls
The following types of calls are available.
Standard Calls
X
SCN Phone -> Mediatrix 1204 A -> Mediatrix 1204 B -> SCN Phone
A SCN user contacts the Mediatrix 1204, which in turn contacts another Mediatrix 1204, then reaches the
corresponding SCN destination.
SCN
SCN
Telephone
SCN
Telephone
Server
Mediatrix 1204 Mediatrix 1204
4 telephone lines
connected to the SCN
4 telephone lines
connected to the SCN
IP
SCN