The following options are available for the Callback entry in the list of Dial-up peers under WEBconfig and a terminal program/Telnet:
| With this entry ... | ... you set the callback as follows: |
|---|---|
| ‘Off’ | There is no return call. |
| 'Auto' (not for Windows operating systems, see below) | If the remote site is found in the numbers list, this number is called back. Initially the call is rejected and, as soon as the channel is free again, a return call is made (after approx. 8 seconds). If the remote site is not found in the numbers list, the DEFAULT remote site is initially taken and the return call is negotiated during the protocol negotiation. The call is charged with one unit. |
| 'Name' | Before a return call is made, the protocol is always negotiated even if the remote site is found in the numbers list (e.g. for Windows computers that dial-in to the device). Small call charges are incurred for this. |
| 'Fast' | If the remote site is found in the numbers list, the return call is made quickly, i.e. the device sends a special signal to the remote site and it calls back as soon as the channel is free again. The connection is established within about 2 seconds. If the remote site does not cancel the call immediately after the signal, then two seconds later it reverts to the normal return call procedure (lasts about 8 seconds). This procedure is available with DSS1 connections only. |
| 'Looser' | Use the "looser" option if a return call from the remote site is expected. This setting fulfills two jobs in one. Firstly it ensures that a connection it established itself terminates if a call arrives from the remote site that was just called, and secondly this setting activates the function that reacts to the procedure for fast return calls. This means that to use fast return calls, the caller must be in 'Looser' mode and, at the called party, the return call must be set to 'LANCOM'. |
Note: The setting 'Name' offers the highest security if there is an entry in the numbers list and in the PPP list.
Note: The setting 'LANCOM' enables the fastest method of call-back between two devices from LANCOM.
Note: For Windows remote sites, you must select the setting 'Name'.
