ZOIPER 2.0 Free SIP and IAX is a user-friendly softphone, compatible with Asterisk or any other SIP or IAX capable system. High-quality VoIP experience with features like: SIP + IAX protocols, SIP over TCP / TLS / UDP with STUN support, Echo cancellation, DTMF tones, Multiple audio devices support, Automatic user registration, Call transfer, Hold function, Multilanguage support, Portable storage compatibility, Codecs: GSM, ulaw, alaw, speex, ilbc

VoIPerized is a so called VoIP (Voice over IP) program. VoIPerized enables you to make free audio calls to other people who also run VoIPerized. When making VoIPerized the focus was to minimize the latency, because other VoIP programs always seemed to have an irritating lag which makes the conversation seem unnatural. By using the open source Speex audio codec the audio quality is far higher than any normal telephone call.

VaxVoIP SIP SDK provides tools and components to quickly add SIP (Session Initiation Protocol) based IP-Telephony make and receive phone calls feature in your web pages and software applications. It delivers superior voice quality by integrating advanced digital voice processing features including acoustic echo cancellation, noise cancellation and adaptive jitter buffering.

Swift RM VQF to M4P Recorder is an excellent CDA to MP3 converter which can convert CDA to MP3 and also a powerful CD to MP3 ripper which can rip CD to MP3 fast and easily. Free download is available. This software quickly and easily converts your audio or video files to AAC, AC3, ID3, M3U, M4A, M4P, MP3 ID3 Tag, OGG, RA, WAV, WMA, MP2, APE, VQF, MPC, AMR, Midi, WAVE, RM format.

PingPlotter Pro is a network monitoring and troubleshooting tool. It runs in the background collecting data, and then allows network professionals fast and easy access to network routing and performance information. Remote tracing, a native web interface and highly configurable alerts are just some of Pro's features. Additional VoIP targeted capabilities such as Jitter, MOS, packet loss and latency make it a must have tool in any admins toolbox.

VoIP Monitor enables you to measure and track performance of voice quality across WAN links. Leveraging Cisco® IP SLAs, VoIP Monitor collects and analyzes VoIP performance statistics including MOS, jitter, network latency, packet loss and other important quality of service (QoS) metrics. These features enable you to proactively find the root cause of VoIP performance degradation and measure expected voice quality in advance of a VoIP deployment.

Merry APE WMA to M4P Copy is designed for extraction digital audio from cd's. Merry APE WMA to M4P Copy copies audio digitally and save as WAV or MP3 on-the-fly with excellent quality and speed. Merry APE WMA to M4P Copy can connect to FreeDB to download CD details and save as ID3V2 tags. You can use Name Rules to generate filename using ID3 Tag information such as artist's, track's title and track's number.

MP3 WAV Studio is an all-in-one solution for burning, ripping and playing of audio files. In addition, the program can also create, encode, decode and convert between MP3 and other formats. Additional features include jitter-correction for ripping of scratched CDs, burn proof, batch conversions, drag and drop playlist creation, as well as a MP3 site manager and more. MP3 WAV Studio - MP3 Player, MP3 Converter, MP3 Ripper and CD Burner.

Direct Audio Converter and CD Ripper is a very useful tool to convert audio files between various audio formats and rip CD audio tracks directly to MP3, WMA, WAV, OGG, FLAC, Monkey's Audio APE or MusePack MPC. You can convert directly from one audio format to another (like MP3 to WAV, MP3 to WMA, MP3 to OGG, WAV to MP3, etc.). You can convert directly from one format to another using different encoding parameters and presets.

Pretty useful tool with handy interface, allowing you to encode WAV, MP3, OGG files and Audio CD(jitter correction, CDDB support) to WMA 9 format with variety of format settings and also performs reverse conversion decode MP3 and OGG files to WAV PCM. You can encode and decode audio files one by one, and use built-in batch process in case of mass conversion. This tool allows you to edit ID3v2 Tags, copy it from one file to another while recoding.

Shunra VE Desktop is a network simulation software tool. It simulates a wide area network link, including latency, jitter, bandwidth and packet loss - enabling users to test applications under a variety of current and potential network conditions ? directly from the desktop. With this insight, users can quickly find and fix application and network related performance problems before and after deployment in production.

Network Catcher, from Shunra, is a free network monitoring tool that records latency and packet loss between your PC and any internet site. Use Network Catcher to monitor the quality of your network link. Network Catcher also integrates with Shunra?s network simulation technology, enabling users to capture and import production conditions directly into network simulation scenarios and test applications under real-life network conditions.