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Chapter 3 - Configuring Network Use
© Polycom, Inc. 3 - 13
Configuring ISDN Support
The V500 system supports the BRI network interface for ISDN calling.
The system automatically detects the type of interface installed and displays only
the required configuration screens.
Configuring the BRI Network Interface
To configure the ISDN interface settings:
1. Go to System > Admin Settings > Network > ISDN.
2. Configure these settings:
Setting Description
Enable ISDN H.320 Allows this system to make H.320 (ISDN) calls.
Outside Line
Dialing Prefix
Specifies the ISDN dialing prefix used to call outside the network.
ISDN Switch
Protocols
Specifies the protocol used by your network’s switch.
ISDN Voice
Algorithm
Specifies which voice algorithm (Alaw or uLaw) is used for ISDN
voice calls.
Do not change this setting unless you experience audio issues in
all ISDN voice calls.
Auto BRI
Configuration
Allows the NI-1 switch to automatically configure the directory
numbers and SPIDs.
This setting is only available if you have selected the NI-1 switch
protocol.