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Some details on the layers currently in use:
|Audio||Provides a stream of audio packets by capturing from the audio input device. Can operate in both full-duplex (playing and recording simultaneously) and half-duplex modes (transparently switches between recording and playing for hardware that is incapable of simultaneous capture and playback). A variety of compression techniques can be used, providing varying levels of compression that can be changed as required.|
|NOM||Our zero-configuration name-lookup service inspired by P2P technology, authored by Diego Doval|
|SIP||Uses a slightly modified version of SIP (Session Initiation Protocol) to provide a signaling mechanism for the establishment of the call. Instead of using SIP servers to provide location it relies on the services of the NOM and DSR layers.|
|DSR||An implementation of the Dynamic Source Routing (DSR) Ad-Hoc Networking Protocol
- implemented by Tim Forde
|Broadcast||A radio layer that interfaces to an IEEE 802.11b network card using broadcast IP
Although this is the only bottom layer currently in use, it can be readily replaced with other layers that have been developed to support other underlying network media such as infrared.
We have tested this on a Compaq IPAQ H3600 series running Microsoft Pocket PC
Vers 2.1 and Version 3 with a Lucent Orinoco Silver PC card for IEEE 802.11b
connectivity. It should be compatible with any StrongArm processor
running PocketPC 2000 or PocketPC 2002, and using any 802.11 card.
To download the application please download the following zipped file and follow the installation instructions in the enclosed Readme file. NOTE: This release is copyrighted software and is being made available in BINARY only form for non-commercial research purposes only.
The ZIP file
A full-duplex audio driver is recommended. A full-duplex driver for the iPAQ 3600 series can be found on the Compaq iPAQ development site