Polycom ViewStation EX4000 - Manual (Page 73)

Chapter 3 - Before You Deploy
© Polycom, Inc. 63
System Services
System services include the following:
❑
Conference on demand
❑
Call forwarding: set forward busy, set forward no answer, and
set forward unconditional.
❑
Access simplified dialing
❑
Join or leave hunt group
System services only work within a zone. They do not work across
zones.
Gateway and MCU services are defined in both PathNavigator and
the MGC platform itself. It is critical that the prefixes are exactly the
same in each system.
ISDN Requirements
The following paragraphs describe the requirements for ISDN PRI
and BRI interfaces.
ISDN PRI
The PRI network interface is available for the ViewStation FX and
VS4000.
Note
Polycom ISDN PRI modules include an internal CSU for the PRI
interface. The system’s internal CSU can be disabled via the Admin
Setup.