User`s guide

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Use suffix x
The Suffix # parameter may be set to contain additional numbers that are dialled after the
number specified by B-channel ISDN #. For example, if B-channel ISDN # was set to
123456 and Suffix # was set to 789, the actual number dialled would be 123456789.
On the main interface Deactivate LAPB session x seconds after TPAD X.25 call has
been cleared
Once a TPAD X.25 call has been cleared, the unit will keep a LAPB instance active for the
length of time set by this parameter. This is to allow further TPAD transactions to take place
without having to make another ISDN call. The default value of 10 seconds should be
acceptable for most applications. The value of 1 is a special value which means terminate
layer 2 immediately the transaction is finished. (When the X.25 call is cleared.)
If you select LAPD as the TPAD layer-2 interface, this value will automatically be set to 0 to
disable layer-2 deactivation. You may still override the 0 setting by entering a new value
but note that most network service providers prefer that LAPD connections are not
repeatedly deactivated.
On the backup interface Deactivate LAPB session x seconds after TPAD X.25 call
has been cleared.
This is equivalent to the deactivation timer above but applies only to backup calls.
With X.25 over ISDN D-channel mode
Send X.25 RESTART packets
d
Delay the X.25 RESTART packets by x milliseconds
d
Configuration - Network > Legacy Protocols TPAD n > X.25 settings
Default X.25 Packet Size
This parameter specifies the default X.25 packet size to be used for TPAD transactions.
Use NUA
This parameter specifies the X.25 Network User Address to be used for outgoing X.25 calls if
no NUA is specified in the call string.
Use NUI
This specifies the X.25 Network User Identifier to be used for outgoing X.25 calls if no NUI is
specified in the call string.
LCN
The unit supports up to eight logical X.25/TPAD channels. In practice, the operational limit
is determined by the particular service to which you subscribe (usually 4).
Each logical channel must be assigned a valid Logical Channel Number (LCN). The LCN
parameter is the value of the first LCN that will be assigned for outgoing X.25 CALLs. The
default is 1027. For incoming calls, the unit accepts the LCN specified by the caller.