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TelecomWeb: Nortel Took the Lead in Volatile Voice/Unified Messaging Market
In the new "1H 2006 InfoTrack for Converged Applications Messaging Report", InfoTech's new analysis of voice and unified messaging CPE shipments shows Nortel assumed the Number One global position in shipments (26%) and revenues (31%) in first-half 2006. Avaya and Alcatel led in terms of shipments in CALA and EMEA, respectively.

HP and Marriott International Form Alliance to Open Public Access Halo Telepresence Rooms
HP today announced it has entered into an agreement with Marriott International Inc. (NYSE: MAR) to make HP Halo telepresence solutions available for public use at select Marriott locations in major business centers around the world.

Allegany College of Maryland Creates Virtual Classrooms with HaiVision's hai1000 MPEG-4 AVC H.264 Multi-stream codecs
HaiVision Systems Inc. (Montreal, Canada) is pleased to announce that Allegany College of Maryland has selected and deployed the hai1000 MPEG-4 AVC H.264 multi-stream codec system to unite educators and students across their 3 campuses.

Cisco CBAC  The Poor Mans Firewall
CBAC Overview The Cisco IOS Firewall Feature Set is a module that can be added to the existing IOS to provide firewall functionality without the need for hardware upgrades. There are two components to the Cisco IOS Firewall Feature Set in Intrusion Detection (which is an optional bolt-on) and Context-Based Access Control (CBAC). CBAC maintains a state table for all of the outbound connections on a Cisco router by inspecting tcp and udp connections at layer seven of the OSI model and populating the table accordingly. When return traffic is received on the external interface it is compared against the state table to see if the connection was originally established from within the internal network, and then either permitted or denied. Alth...

Cisco Certification: The Definitive Guide To ARP, IARP, RARP, and Proxy ARP
When I first started studying for my CCNA years ago, one of the (many) things that confused me was ARP. Or rather, what ARP did as opposed to Reverse ARP, Inverse ARP, and Proxy ARP! One book would mention ARP without mentioning the other variations, one woule mention RARP but not Proxy ARP, and so on.