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Chapter 3 - Initial System Configuration
3-9
Configuring the Network Services
The Network Services include the parameters of the networks connected to 
the MCU. If no Network Services have been configured, depending on your 
system configuration, the appropriate Network Service must be configured. 
This section describes the configuration of both IP and ISDN networks.
ISDN Network Service
The Net-2/4/8 Network Interface module installed in the MCU interfaces 
between the MGC unit and the ISDN switch. The Network Service is used to 
define the properties of the switch and the ISDN lines running from the 
switch to the ISDN Network Interface module. Each group of ISDN lines 
having the same characteristics and originating from the same ISDN switch, 
will be assigned to the same Network Service. 
IP Network Service
The IP Network Service defines the properties of the IP network used for 
connecting IP endpoints to the conference and the IP cards (installed in the 
MCU) to which the network is connected. Several of the network components 
are used by both H.323 and SIP endpoints to connect to the conference, and 
the same IP card is used for H.323 and SIP connections. One IP Network 
Service, therefore, can be defined for both H.323 and SIP environments as 
well as an H.323-only or a SIP-only network service.
Defining an ISDN Network Service
The MCU can be connected to ISDN lines provided by different carriers. 
Each carrier has unique characteristics, and may have different pricing 
programs. To use these lines, together with the carrier’s special programs, you 
must first obtain the relevant information from the carrier and then define 
their parameters in the MGC Manager’s application.
To define a New ISDN Network Service:
1.
Connect the MGC Manager to the MCU. 
2.
In the Browser pane, expand the MCU tree to list its options.
Installing the    
MGC Manager
Initial IP 
Configuration
Connecting 
to an MCU
Configuring the 
Network Services
Defining an MCU
Starting the MGC 
Manager
For information about defining T1-CAS, MPI, NFAS ISDN, Leased lines 
ISDN and additional ISDN and IP Network Services, or modifying 
existing Network Services, refer to the MGC Administrator’s Guide, 
Chapter 3
.