Lancom Systems LCOS 3.50 - Manual (Page 100)

LANCOM Reference Manual LCOS 3.50 ̈ Chapter 7: Routing and WAN connections
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Routing and
W
A
N
con
n
ections
̈ The callback party selects 'Call back the remote site (fast procedure)' in
the name list and enters the calling number ('LANCOM' when configuring
via WEBconfig, terminal program or Telnet).
For fast callback using the LANCOM method, the number list for
answering calls must be kept up to date at both ends.
7.8.3 Callback with RFC 1570 (PPP LCP extensions)
The callback as per 1570 is the standard method for calling back routers of
other manufacturers. This protocol extension describes five possibilities for
requesting a callback. All versions are recognized by LANCOM. All versions
will be processed in the same way, however:
The LANCOM drops the connection after authenticating the remote station
and then calls back the station a few seconds later.
Configuration
For callback as per PPP you select the option 'Call back the remote site' in
LANconfig or 'Auto' with configuration via WEBconfig, terminal program or
Telnet.
For callback as per PPP the number list for answering calls in the
LANCOM must be up to date.
7.8.4 Overview of configuration of callback function
The following options are available in the name list under WEBconfig and ter-
minal program/telnet for the callback function:
With this
entry ... ... you set up the callback in this manner:
'Off' No callback occurs.
'Auto' (not for
Windows operat-
ing systems, see
below) The remote station will be called back if so specified in the name list.
At first, the call is denied and as soon as the channel is clear again, it
is called back (duration is approx. 8 seconds). If the remote station is
not found in the numerical list, it is first accepted as the DEFAULT
remote station, and the callback is negotiated during the protocol
negotiation. A charge of one unit is incurred for this.