capircvd is a voice/fax gateway. It receives fax (G3) and voice-calls using an ISDN-Bus, an AVM ISDN-Card (active or passive) and CAPI20 from isdn4linux, or AVM. It can be used on either P2P (with DDI) or P2M S0-bus. After reception, it can process files (send as mail) using an external handler (included).
chan-sccp-b is an extension of the original chan-sccp implementation for the Asterisk soft-PBX. It lets you hook up a Cisco/SCCP Phone to your Asterisk server using the SCCP protocol, which works a lot better than the SIP firmware on the same phone. It provides full phone functionality instead of just a simple SIP channel provider. It offers functionality like shared lines, hotline functionality, guest login, dynamic speeddials, private line automatic ring-down (PLAR), personal softkey configurations, Dundi support, SCCP extended dialplan functions, manager support, and custom device state buttons.
clipd is a daemon for displaying and saving CLIP information (also known as CallerID) from an analog telephone line. Connection history as well as callbook are stored in a MySQL database. Showing data on an LCD display using lcdproc is supported. PHP scripts are included for managing the database (adding callers, modifying, searching, dialing).
fonmon is a remote phone monitor for isdn4linux. It includes a server application for your ISDN-enabled computer (e.g. an ISDN gateway) and a client for your workstations (Linux and even Windows). You can easily monitor all incoming calls through your network with various clients, with features like highlighting, logging, and number/name exchange. The server won't run on a machine without an ISDN card in it.