TANDBERG F1 D13353.02 User Manual page 109

4.8.1.2.1 Number Range
Enter the range of numbers for your PRI line. If this number is programmed and MSN: On
(see Validate numbers in Advanced ISDN Settings) only calls to this number will be
answered.
4.8.1.2.2 ISDN PRI Switch Type
Select the type of PRI switch to which your system is connected.
Below is a list of common ISDN-PRI/T1 switches.
Type Manufacturer
ATT 4 AT&T
ESS AT&T/Lucent
ATT 5 Northern
ESS Telecom
DMS 100 Telecom
DMS 250 Northern
* Settings will depend on configuration of the switch. PRI Switch Type is not changed when
Restoring Defaults.
4.8.1.2.3 Channel Hunting
Max Channels Maximum number of channels the system may use at any given
time.
Low The lowest numbered B-channel that may be used by the system
Channel when selecting channels for outgoing calls.
High Channel The highest numbered B-channel that may be used by the system
when selecting channels for outgoing calls.
Search
Specifies where the system will start searching for available B-
channels for outgoing calls.
Example:
Channel hunting is normally used in conjunction with PRI daisy chaining with TANDBERG
systems in the daisy chain. If only TANDBERG systems are used in the daisy chain,
default setting should be used, as these systems will find available B-channels
automatically.
Max Channels may be used for PRIs that are provisioned for a lower number of channels.
Max Channels may be used as mechanism to ensure that there is bandwidth available to
systems further down the chain when Daisy-Chaining.
High Channel, Low Channel and Search may be used for PRIs provisioned with specific
requirements for B-channel usage.
PRI Switch Type setting
AT&T ISDN
AT&T ISDN or National ISDN*
National ISDN
National ISDN
4 Administrator Settings
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