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Technology Stocks : Nortel Networks (NT) -- Ignore unavailable to you. Want to Upgrade?

To: Kenneth E. Phillipps who wrote (2620)	5/7/1999 10:21:00 AM
From: Kenneth E. Phillipps	Respond to of 14638

Answer to my question re the call server - courtesy of doughnuthead 576 on the Yahoo thread. The call server hosts much of the voice services software that Nortel has developed over the last 15 years. This software sets up, maintains and tears down connections established across the packet network. Nortel was able to take their existing software and use it in this application by separating the part of the software that would normally "talk to" a circuit switched matrix. Instead the software now knows how to set up connections across a distributed packet-switched network (e.g. it uses the packet switched network as a distributed switching fabric). This is the most difficult part of the strategy to replicate for a company like Cisco because they lack the software and the expertise to develop voice communications software on this scale. Hope this helps.

To: Kenneth E. Phillipps who wrote (2620)	5/7/1999 10:25:00 AM
From: Bosco	Read Replies (2) \| Respond to of 14638

Ken - in a nutshell, it appears to be an agent [hardware?software?] which will provide the signaling, provisioning and call control functions within and between both TDM and packet networks. And from the NT site, "Call Server" is stated as follow: Your Location: Home / Products & Services / The Succession Network / Succession Call Server The Succession Call Server is the call-processing component of the network, with responsibility for translations and routing the delivery of advanced, interactive telephony services. It provides scalability, security, and reliability to meet present and future network demands. Bridging the ATM and TDM domains, the Connection Broker, whose intelligence resides in both the Succession Call Server and the Succession Multi-Service Gateway, is used for system and connectivity control for the ATM portion of the network. Also included in the Succession Call Server platform is a Signaling Manager which provides the interface to the Signaling System Number 7 (SS7) network. It terminates standard SS7, and is responsible for the translations and routing for a Succession Network. IP servers provide for application services such as personal agent and unified messaging, combined with advanced call disposition options. In addition, with the directory server, transactional databases will be available for processing a variety of billing and quality of service (QoS) offerings.