Free screening software for linux

sipscreen project is a Linux iptables QUEUE target handler written in perl for screening incoming SIP phone calls.

If you have a network configuration similar to mine, with a Vonage or other Voice-over-IP adapter located behind a Linux gateway, you may find sipscreen useful for programmatically accepting or rejecting inbound calls, based on the caller ID information, the time of day, or any other clever algorithm you can think of.

OpenPCD is a free and open RFID reader reference design platform. The OpenPCD firmware is software that runs in OpenPCDs AT91SAM7 ARM controller, and connects the RFID reader hardware (CL RC632 ASIC) with the Host PC via USB. The Firmware includes a custom USB device stack and drivers for the various embedded AT91SAM7 components. The firmware itself does not run on Linux, but it only works with a Linux host PC talking to it.
OpenPCD is a free hardware design for Proximity Coupling Devices (PCD) based on 13,56MHz communication. This device is able to screen informations from Proximity Integrated Circuit Cards (PICC) conforming to vendor-independent standards such as ISO 14443, ISO 15693 as well as proprietary protocols such as Mifare Classic. Contactless cards like these are for example used in the new electronic passports.
The intention of the OpenPCD project is to offer the users full hardware control of the RFID signal and to provide different output signals for screening the communication. With already existing Free Software from the OpenMRTD project for implementing the PCD side protocol stack of various RFID protocols, this project will happily extend the free toolchain around RFID verification.
Enhancements:
- This is the initial version of the firmware.
- It supports basic RFID reader functionality for the ISO14443A.

Call Commander is a high-performance management system and call screening designed for use in professional talk-radio environments that integrates directly with a variety of popular broadcast telephone interfaces.
The system is designed to allow the easy acquisition, tracking, communication and archiving of caller information, along with tools to enable seamless communication between the various key talk show players (talent, producer, screener, etc).
Also provided is an automated Segment Clock to help keep things running on time.
Call Commander is highly configurable, with virtually every aspect of its on-screen appearance and functionality capable of being customized for the needs of a particular site. Visit our gallery of screen shots showing some of the possibilities available.
Call Commander runs on the popular GNU/Linux operating system, with clients also available for Microsoft Windows 98, 2000 and XP. It is freely available under the GNU General Public License.
Main features:
- Highly customizable and configurable.
- Comprehensive caller data acquisition, status tracking and archving.
- Point-to-point communication and alerting for Talk Show personnel.
- Synchronized, automatic segment clock.
- Works with a variety of broadcast telephone systems, including:
- Comrex/Gentner TS-612
- Telos 100 1A2 Interface
- Telos 100 Direct Interface
- Telos 2101
- Telos ONEx6
- Telos TWOx12
- Works with LAN, Internet and Dialup networking connections.
- Runs on the rock-solid GNU/Linux operating system.
- Totally free and open -- No dongles, unlock codes, software keys or other arbitrary limitations.