Perle Systems 833IS - Manual (Page 162)

Configure the Internal User Database
146 Perle 833IS User Guide
The User Callback screen is as follows:
Enable Roaming Callback
When checked, this option will enable Roaming Callback. If a client asks for
roaming callback during connect, the 833IS will callback with the number supplied
by the client. If a client does not request roaming callback, the session will be
established as if roaming callback was not checked.
If this option is not checked, any roaming callback requests will be rejected at
connect time. Client behavior will be dependent on the client – the client may either
continue the session without callback, or end the session.
Enable Fixed Callback
When checked, fixed callback will always be performed for this user when dialing
in. If you are using the internal database, the callback will be done to the main phone
number, or optionally to the alternate phone number if requested by the client. With
RADIUS, the callback will be made to the phone number provided by the RADIUS
server.