ELSA LANCOM Office Manual page 164

R18 Technical basics
callback entry so that additional call number verification is also possible on the ELSA
MicroLink Cable:
This entry is used to...
Off
Auto (not Windows 95,
Windows 98 or
Windows NT, see below)
Name
ELSA
Looser
Greatest security is offered by the 'Name' setting if an entry exists in both the number
list and the PPP list. The 'ELSA' setting ensures the fastest callback method between
two ELSA routers.
The 'Name' setting must be selected for Windows remote stations.
Microsoft CBCP callback
Microsoft CBCP provides a number of options to determine callback numbers:
The party called does not call back.
The party called allows the caller to specify the callback number itself.
The party called knows the callback numbers and only calls these back.
It is possible to use the CBCP from a PC running Windows 95, Windows 98 or
Windows NT to establish a connection to the ELSA MicroLink Cable have it call you back.
ELSA LANCOM Office
...to set the callback so that:
No callback occurs.
If the remote station is found in the number list, it will be called back.
The call is initially rejected and the return call placed as soon as the chan-
nel is free (approx. 8 seconds later). If the remote station is not found in
the number list, the call is initially accepted as the DEFAULT remote sta-
tion and the callback is negotiated during the callback protocol negotia-
tion. A charge of one unit is incurred for this.
A protocol negotiation is always performed before the return call is
placed, even if the remote station is found on the number list (e.g. for
computers using Windows that have dialed into the device). A charge of
one unit is incurred for this.
If the remote station is found in the number list, a fast callback is per-
formed; i.e. the ELSA MicroLink Cable sends a special signal to the
remote station and returns the call immediately once the channel is free.
The connection is established in approx. 2 seconds. If the remote station
does not cancel the call immediately upon receiving the signal, a fallback
to the standard callback procedure is performed after 2 seconds (duration
of call establishment approx. 8 seconds). This process is only available
for DSS1 connections.
Use the 'Looser' option if a return call is being expected by the remote
station. This setting simultaneously fulfills two tasks. It ensures that the
call establishment is canceled locally for incoming calls from a remote
station just called, as well as enabling the response to the fast-callback
process. In other words, to take advantage of the fast callback, the caller
must be in 'Looser' mode, while the station being called must be set to
the 'ELSA'.
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