Andrés Vega-García wrote the core code of Free Phone. His work, part of a PhD thesis, was supervised by and done with Jean Bolot , with much useful feedback/advice from Christian Huitema .

Release Description

Main features:

• manages multiple unicast and multicast sessions. Thus, there is no need to have several instances of the tool running simultaneously.
• implements version 2 of the Real-time Transport Protocol RTP .
• includes a signaling protocol to contact remote parties.
• includes support for sampling rates ranging from 8 to 48 kHz. High sampling rates such as 44 kHz and 48 kHz correspond to CD and DAT quality audio, respectively.
• includes a redundancy mechanism for packet reconstruction. The level of redundancy can be chosen in a manual, semi-automatic, or automatic fashion.
• supports the redundancy mechanism and the different sampling rates using special RTP payload types .
• includes the usual assortment of codecs, including PCMU, VADPCM (ADPCM-DVI), ADPCM at 6, 5, 4, 3, and 2 bits, GSM, and LPC.
• is compatible with RAT . Free Phone and RAT both use the special RTP payload types developed within the MERCI project.
• is compatible with vat when not using the redundancy or the high quality audio features.
• uses Tcl 7.5 and Tk 4.1.

New features of this release:

• supports stereo and the L16 codec
• Internally sets the hardware to the best configuration (i.e. 16 bits, stereo, 48 KHz) and then does under/over-sampling and mono/stereo conversions to send the packets as requested (e.g. mono, 8 KHz) and converts what is received to the internal configuration

Systems Requirements List

Version 4.0 Beta 1 is available for the following platforms:

The following platforms run 3.0 Beta 1:

Installation Guidelines

Uncompress fphone-yourOS[-static].gz where you usually store your

binaries (i.e. ~/bin) and untar the libtcl.tar.gz in your root directory

(i.e. ~/libtcl). Go to your bin directory:

$ cd bin

$ mv fphone-yourOS[-static] fphone

$ chmod 755 fphone

$ rehash

Set the environment variables as follow:

$ setenv TCL_LIBRARY ~/libtcl

$ setenv TK_LIBRARY $TCL_LIBRARY

Web source

Frank Lyonnet, a member of the Rodeo team at Sophia Antipolis, is primarily responsible for the software. He is a second year PhD student supervised by Walid Dabbous and Christian Huitema.

Release Description

Main features:

• RTP version 2 protocol support over multicast or unicast IP.
• Low bandwidth H261, H263, NV, JPEG video standards.
• High quality PCMU, ADPCM, VADPCM (with HiFi support) and very low bandwidth GSM and LPC audio coding.
• Mpeg 1/2 file reading / transcoding
• Coder throughput dynamic adaptation to match the available bandwidth.
• A scheduling mechanism of video and audio sub flow processing leading to an overall better use of machine resources in order to maximise the suggestive quality rendered to the user.
• A great flexibility for support of new kind of protocol or new video coding methods.
• Support for layered multicast management of video and audio flows.
• Experimental multiresolution wavelet codec.
• Experimental multiresolution DCT codec.
• Experimental very low bit rate fractal codec.
• A highly flexible user interface design thanks to the adoption of the PAC Amadeus interactive system model with a custom C++ implementation.
• A great code portability with the use of single process design, ANSI standard, target system derivation of classes and the use of the PAC model.
• Multi level audio redundancy for bad network links.

Systems Requirements List

Versions are available for the following platforms:

The last two of these platforms are new in this release.

Installation Guidelines

Edit the ivstng.sh file in order to match the place where you want to put the lib/ library (default is ./lib).

Execute the ivstng.sh script with the following syntax :

Default parameters are 224.2.224.2 2242 224.2.224.4 2244 16.

Web source

People on the project are Angela Sasse, Vicky Hardman, Isidor Kouvelas, Colin Perkins, Orion Hodson, Anna Watson, Mark Handley and Jon Crowcroft.

Release Description

RAT is similar to existing audio tools (such as vat), is RTP v2 compliant, and offers extra functionality to try and improve the performance over the Mbone:

• Redundancy (packet loss protection)
• Adaptive Scheduling protection
• Improved Statistics
• Lip synchronisation option
• Improved hands-free performance option

The packet format used by RAT v2.6a2 and later to transmit redundant encodings has changed. The new packet format is a result of collaboration between UCL and INRIA. A specification of this format can be found in the Internet draft draft-perkins-rtp-redundancy-01.{txt|ps}. Because of this change, versions of RAT prior to v2.6 will not be able to interoperate with new versions when using redundancy.

Systems Requirements List

RAT binaries version (3.0.18/2 0) are currently available for:

The last two are new platforms for this release.

Installation Guidelines

Unix: gunzip the binary

Windows95: unzip the binary, set HOME environment variable.

Web source

Of the Communications Research Centre, Ottawa, Ontario, Canada

Release Description

MultiMON is a monitor that collects, organises and displays all the IP multicast traffic that is detected at the location of the MultiMON Server.

While MultiMON is a general purpose multicast monitoring tool, it is intended in particular to monitor multicast traffic on local network segments and should assist a network administrator in managing the traffic on an Intranet.

MultiMON is built on a client/server basis which allows the data collectors (Servers) to be distant from the GUI front end displays (Clients).

Systems Requirements List

MultiMON is written in tk/tcl, but needs tcpdump, xplot, the distributed processing additions, and the object-oriented additions to tk/tcl.

Currently, we have it running on Sun workstations, but there is no reason to believe that it will not run on other platforms, (at least the client) including Windows 95 and NT. We have an Axil Ultima (Sun Ultra clone) that we do development on, and this seems to work very well.

Versions needed:

• tk: Version 4.2
• tcl: Version 7.6
• tcpdump: Version with multicast support (latest is good)
• xplot: Version included
• tcl-dp: Version included
• stooop: Version included

The server needs: tk, tcl, tcpdump, tcl-dp

The client needs: tk, tcl, xplot, tcl-dp stooop

Tk, Tcl and Tcpdump are not bundled with this distribution. If you do not have these, or do not have recent

versions, please upgrade.

Installation Guidelines

Web Source

Release Description

SCUA is based on the MIME standard and has the following features:

• Exchange of encrypted messages between participants who are strongly authenticated by their certified public/ private RSA key pairs. The security infrastructure is based on SECUDE, a software package developed by GMD and available on the Internet. Mail encryption is currently based on PEM (Privacy Enhanced Mail, RFC 1113-1115) and will be adapted to more recent standards such as S/MIME.
• Easy inclusion of specific conference data, such as conference name, tools used, multicast addresses etc.
• Easy joining conference by a single click directly from the E-mail.
• Reminding call (tone) for a user, when the starting time of a conference has come.
• Cross-platform support and interoperability with common mail tools are an objective.

Systems Requirements List

The system is available for Unix machines using sendmail.

Installation Guidelines

Full instructions are given in the README file which is included with the release.

Changes have to be made to an installation script and the library libsecude.so for Solaris2.5 has to be retrieved.

At initial use, an installation window is opened and various defaults have to be changed.

Web Source