Polycom V500 Administrator's Manual page 42

Administrator's Guide for the V500 System
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3. Select and configure these settings:
Setting Description
Area Code Specifies the area code for this system's location.
Directory Specifies the numbers assigned to the B1 and B2 channels for
Numbers the BRI line.
The two numbers for a line may be the same or different,
depending on the switch protocol in use.
Enable Specifies whether to enable the ISDN line.
If you selected Standard ETSI Euro-ISDN protocol, you must
enable the BRI line.
The ISDN BRI Numbers screen also displays the country selected as the
system's location and the Country Code used for international calls to the
system. To specify the system's location, go to System > Admin Settings
> General Settings > Location. The system automatically supplies the
country code when you specify the country.
4. If you have configured
Multipoint, NI-1, or Nortel DMS-100, select
SPIDs provided by your service provider.
After you enter the SPIDs, the system verifies them. If the system is unable
to verify the SPIDs, make sure the system is connected and that the ISDN
numbers you entered are correct.
If you do not have the SPIDs from your service provider, you can click
Start to Auto-Detect SPIDs.
ISDN switch protocol to be AT&T 5ESS
the
and enter the ISDN BRI