Specifications

Restricting Access to Scheduled Times
AVM Access Server – 5 AVM Access Server Concepts and Functional Principles 79
The system administrator must ensure that enough B channels are al-
ways available if most of the remote sites have been configured to
maintain logical ISDN connections (i.e., their disconnect timeout under
“End idle logical connection” is set to “Later than Inactivity Timeout” or
“Never”).
For this case, the AVM Access Server offers several ways of ensuring
that “important” networks or users always have access, even if fewer
B channels are available:
B channels can be reserved in the ISDN-Controller settings (“Ad-
ministration / Interfaces / ISDN#<number>”) for remote users, for
remote networks, or for a specific remote network. These reserved
B channels are then removed from the pool of shared channels.
Remote users and networks can be assigned a priority (high,
medium, or low) in the user group or network settings. This en-
sures that users with high priority can always obtain a B channel.
If all B channels are busy when a connection is requested, a low-
er-priority connection is cleared down. Note that Caller ID must be
activated in order for remote users and networks with high priority
to be identified, and a B channel freed, before a call is answered.
5.5 Restricting Access to Scheduled Times
To limit access to the LAN to certain times of day and days of the week,
you define schedules in the “Administration / Schedules” folder.
These schedules can then be assigned to remote users and networks
in the user group and network settings. For example, you may define a
time restriction configuration that permits access only from Monday
through Friday during business hours. When you then assign this
schedule to a remote network or a user group, the remote network or
the remote users cannot access the LAN outside the specified times.