Open Source Linux Telephony Software

This ASN.1 compiler turns ASN.1 specifications into C code. The asn1c is shipped together with conformant BER/DER/XER/PER codecs. The X.509, GSM TAP3, MEGACO, RRC and LDAP encoding and decoding examples are part of the source code distribution. NOTE: THE asn1c PROJECT HAS LARGELY MOVED TO GITHUB: http://github.com/vlm/asn1c

Artemisa is a honeypot for VoIP (SIP) networks. It is designed to connect to a VoIP domain as a user-agent backend in order to detect malicious activity at an early stage and also adjust the policies of the enterprise in real-time.

The Cryptofon is designed to enable safe and secure communication trough a regular PSTN line. It supports narrowband connections (~2400 bit/s and lower).

Visual Framework Tool to scan/sniff address space, enumerate users, crack credentials, pattern based dial spoofing and security reporting for Voip protocols. This software is intended to give a general framework to build and plug Voip protocol analizers in order to fix security issues and enhance VoiP platforms confidence. It IS NOT intended to be a cracking tool for malicious system breakers, but a really software MUST for security people to assure Voip platform security.

Java implementation of MIKEY (Multimedia Internet KEYing, RFC 3830).

One of the first secure telephony programs. Not limited to VOIP but can also directly encrypt a telephone line by using modems. Calls are encrypted using Diffie-Hellmann key exchange and several symmetric ciphers. Download is possible from Germany only, see homepage

OSSEG is an IMS compatible security gateway that adds firewall, VPN, IDS, IPS, and monitoring functionalities to VoIP networks.

A Simple Middlebox Configuration Protocol (RFC 4540) implementation for Linux. SIMCO is a signaling protocol that can be used by applications (such as SIP B2BUAs) to dynamically control firewalls and Network Address Translators (NATs).

With SIP Proxy you will have the opportunity to eavesdrop and manipulate SIP traffic. Furthermore, predefined security test cases can be executed to find weak spots in VoIP devices. Security analysts can add and execute custom test cases.

SMSID provides a Linux PAM that allows the use of a GSM cellular phone with SMS capabilities as a hardware token in a strong authentication system. In addition to the Linux PAM module, an extensible SMS server is included. This server is written in Java

SMSec is a free , open source, GPLed implementation of two-factor authentication via SMS (Short Message Service). It uses SMSD to "talk" to GSM modems, provides a flexible XMLRPC web-service for web-developers integrate SMSec into their web-apps.

openssl is well-known allover the world,but it is huge,complex.our target is develop a tinytls,it is small,simple,good understanding,and usually for embedded system.But it can support most openssl features.You can add some other features easily.

This turns a PDA with a wireless connection into a internet telephone.

VoIP Honey project provides a set of tools for building an entire honeynet, thus includes honeywall and honeypot emulating VoIP environments such as Asterisk PBX or OpenSer with fully configurable connections. Voip Honey runs on GNU/Linux and Windows Systems. It can be compiled for Mac OSX as well.

cau-dial is a phone scanner, or "wardialer" for UNIX platforms.

iDate searches via Bluetooth if there are potentially nice dates in your vicinity. You will be notified who is in your vicinity has iDate and whether these people could be a nice date if for each the profile matches the search profile of the other.

The libSRTP project has been moved to https://github.com/cisco/libsrtp

This project is an open source linux-based router with highly advanced features. It has very sophisticated and state of the art routing , firewalling and security capabilities.

Telescan is a full featured, multithreaded war dialer written in C for Linux. It can log its activity and carrier information to a database, in which detailed reports can be run regarding activity.

x:einfach simple java components is a library for java. it includes various things like a page cache for web-content, a virtual string table, an ip subnet checker, string and date handling utilities, a connection pool and other simple things.