Polycom 1 - Manual (Page 33)

Networks
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4. Select and configure these settings:
5. Select and configure these settings:
6. Select and select a channel to activate or deactivate it. Active
channels are represented by a green icon, and inactive channels are
represented by a gray icon.
Setting Description
Numbering Plan Select the appropriate numbering plan for your location, if it
differs from the default.
International
Dialing Prefix Specify the dialing prefix needed for international calls.
Call-by-Call Specifies a code that the system sends to the telephone
company switch to request a special service, if such a code is
required.
Consult your telephone service provider to determine the
proper call-by-call value.
Number of ISDN
Channels to Dial
in Parallel Specifies how many channels to dial at one time.
You can specify up to eight channels. If you experience
network problems, decrease the number.
Set this value to 1 for serial dialing. Serial dialing is not
recommended unless you have trouble connecting calls using
parallel dialing.
Restore Defaults Resets all values on this screen. This does not affect other
PRI settings.
Setting Description
PRI Line Type Displays read-only information about the system
and its configuration.
Number of Active Channels
D Channel Location
Network Mode
Clock Source
Terminal Endpoint ID
TEI
Line Termination
PRI E1 only
Make sure that channels are activated and deactivated only by a knowledgeable
network professional so that the system operates properly and can dial at the
desired rates.