ISDN answering machine, server

 Let your debian system be your answering machine! Messages can be accessed
 remotely, automatically emailed, etc.
 .
 This is the server part of the software. This is what needs to be installed
 on the system with the ISDN card. To actually listen to the recorded messages
 you need the client package (isdnvboxclient) somewhere, not necessarily on
 the same system.