Network Computing is part of the Informa Tech Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them. Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

Avaya Intros SIP-Standardized IP Telephony

Transitioning to converged communications just got get easier last Monday, as Avaya introduced its new Session Initiation Protocol (SIP) portfolio. However, key features will need to be implemented before high-availability, enterprise-wide deployments can occur.

At the core of the announcement is Avaya's Converged Communications Server (CCS), a SIP proxy server that connects to the company's proprietary IP telephony solution, the Avaya Call Manager (ACM). The CCS will add SIP-based voice, presence, and Instant Messaging (IM) services. Avaya will also introduce the Avaya IP Softphone R5 with IM, a SIP-enabled softphone that integrates the three technologies, as well as a low-end SIP handset, the Avaya 4602 IP Telephone.

In many ways, Avaya's CCS highlights the future direction of established voice players -- namely, converged communications running on open systems. While IBM and Microsoft may dominate the general-purpose messaging and communications space, Avaya and other PBX suppliers are grappling with ways to deliver groupware capabilities to the telephony marketplace.

The CCS is a result of those efforts. It uses presence in uniquely voice-centric ways. When an Avaya softphone user is on a call, for example, the presence indicator will automatically indicate this state. Similarly, the IM client is tied directly to the softphone and runs over an encrypted Transport Layer Security (TLS) channel, which picks up on the top-notch security associated with the voice environment.

This functionality isn't just limited to IP users, either. With Avaya's SIP portfolio, customers can migrate to SIP while protecting their existing investment in Avaya hardware. The CCS hangs off the ACM, providing SIP addresses to proprietary Avaya clients running H.323, analog, or digital handsets. The CCS also inherits the ACM's extended functionality, providing call capabilities not found in SIP, such as call parking.

  • 1