Voice over IP: Security, stability, success

Summary:If you're thinking about voice over IP -- and sooner or later you'll have to -- we take a look at the steps involved in getting it set up and what's on offer from four major vendors.


  Voice over IP

 VoIP at a glance
 Getting started with VoIP
 Bandwidth issues

Cisco systems

 Final words
 Glossary of terms
 About RMIT
Nortel has been around for over 100 years, and has made the transition from a communications services and infrastructure company into data networking solutions. This includes the natural progression to VoIP and related converged solutions.

Nortel, which is similar in many ways to Avaya, has two main levels of systems and deployment as well as support and integration for its legacy PABX user base. The first solution is suited to the SME market with the BCM 200 and 400 series, supporting up to 150 users and starting at less than AU$10,000. The enterprise-level equipment is the CSE1000 which can scale from 200 to 15,000 users.

An innovative and vendor-independent overlay for any VoIP system is the Nortel MCS5100, which provides advanced multimedia support and capabilities to VoIP networks, and is fully SIP compatible.

Nortel i2002 and i2004 handsets
Nortel, like Cisco and Avaya, is mainly a proprietary VoIP system based on the company's MCDM and Unistim protocols. However, the signalling server supports the H.323 and SIP standards.

Nortel is targeting sites with 100 or more users as well as its existing installed base of PABX and key system users. Some of the high profile users of Nortel VoIP systems include, ANZ, JB Hi-Fi, and the University of Ballarat.

Topics: Networking, Reviews

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