Polycom VSX 3000 Administrator's Manual page 69

Vsx series
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Setting
Description
ISDN Switch
Specifies the protocol used by your network's switch.
Protocol
ISDN Voice
Specifies which voice algorithm (aLaw or uLaw) is used for
Algorithm
ISDN voice calls.
Do not change this setting unless you experience audio issues
in all ISDN voice calls.
Auto BRI
Allows the NI-1 switch to automatically configure the directory
Configuration
numbers and SPIDs.
This setting is only available if you have selected the NI-1
switch protocol.
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
each 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 associated ISDN line.
If you selected Standard ETSI Euro-ISDN protocol, you must
enable all BRI lines that you expect to be active, and you must
not enable lines that will not be connected.
You may want to disable a particular line if there are problems
with the line that generate continuing error messages.
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 the ISDN switch protocol to be AT&T 5ESS
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.
Configuring Network Use
and enter the ISDN BRI
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