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BeNet - communication

Media Preferences

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Info

H.323 is a recommendation published by the International Telecommunications Union and defines the interworking of a series network elements and protocols to allow multimedia transmission (voice, video, chat file sharing, whiteboarding etc.) through an unreliable packet-based network.

 

Info

RTP (Real-time Transport Protocol) was designed to enable the transport fo real-time data over packet-oriented data networks such as the Internet.

RCTP (Real-time Transport Control Protocol) is a companion protocol that is used for gathering statistics on the performance of the connection. These statistics are used to dynamically adjust and optimize for current network conditions.

 

 

 
BeNet

We take the fairly good audio quality in a telephone conversation for granted. Telephone calls over the Internet is not that easy, as millions of data packets must cross dozens of servers just to make one single conversation. yellowTAB has therefore chosen two well tested stacks for the included VoIP application: OpenH323 and RTP-RCTP.

The H.323 ITU standard allows you to make audio and video calls to remote users with H.323 hardware or software (such as Microsoft Netmeeting and GnomeMeeting for Linux and various unixes).

BeNet lets you can carry on voice or videoconferencing sessions. It uses full-duplex audio technology, so that you and a friend can talk at the same time without interruptions. The audio codecs (compression/decompression) used minimize feedback loops and delivers great voice quality.

BeNet only lets you call other PCs using OpenH323 or RTP/RCTP, saving you from paying long distance telephone rates. Calls to regular telephones can not be done from within this application.


Hardware Requirements
First of all you need a sound card that has supported input and output. These are configured in the Media Preferences.

You then need at least a microphone and a set of loudspeakers. We recommend a headset that includes a microphone.

When it comes to the Internet connection, the minimum requirements for the chosen audio codecs are broadband.


Configuring BeNet

BeNet's Preferences is devided in to four panels (tabs): General, Audio, Network and Identity.

General is controlling how the user interface is built up in the main window. Activating the check boxes, activates parts in the main window. The parts in the main windows can all be minimized.

The changes you make here, will first take effect the next time you start up.

Audio: Depending on your internet connect you should activate Use codec and Modem Quality. Using a modem slows down the speed of the transmission.

Network: This panel lets you choose to make BeNet go online on startup.

You can enter the IP of your IP Server (if you know one) and port to connect to (it should always be 3030). Also, you can set timeout (5 minutes is the default) for your connection to the IP Server.

In the Identity panel you should identify yourself, so that others know who is trying to contact them.

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