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Session Border Controller Implementation One of Four Steps to Reducing AIrline's Costs

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November 04, 2010

Session Border Controller Implementation One of Four Steps to Reducing AIrline's Costs

By David Sims, TMCnet Contributing Editor


Sonus Networks (News - Alert) Helps Airline With Four Steps to Reduce UC Costs


Sonus Networks officials have recently recounted a project with a major international airline which needed to manage PBX (News - Alert)/carrier diversity, gradually migrate to SIP trunking, improve business continuity and manage voice security risk using session border control.

The airline industry uses highly complex communications systems evolved over generations of TDM, H.323, and IP technology, Sonus officials say, adding that “their voice networks, often spanning global operations, have become increasingly costly to manage and maintain, resulting in compromised customer service and reduced profits through higher opex/capex costs.”

The airline wanted to reduce rising telecom costs while shifting heterogeneous

communication networks toward a single, all-IP network that could support Unified Communications (News - Alert). To address these goals, the airline chose to deploy a session border controller and media gateway solution from Sonus Networks.

In particular, Sonus officials say, the airline ultimately identified four goals for its voice network migration and consolidation:

To gradually migrate to all IP while maximizing the useful life of legacy equipment. The airline’s

voice network featured a mix of equipment from many different vendors, resulting in a variety of

interoperability issues, aging legacy equipment, a diverse set of telecom technologies and services. “It was important for them to manage an incremental and planned evolution of this heterogeneous voice infrastructure to an all-IP architecture.”

To improve customer service and call quality. The ability to handle peak call volumes, route calls around overloads, and recover quickly from infrastructure failures and carrier outages was important to the airline.

Part of the transition involved implementing a PSX centralized route server, which provides both network management and session control. Another implementation was the allowance of network border switches to deliver session border controller services that secure private IP addresses and public Internet networks peered with the airline’s internalized IP network.

This maneuver added even more session border control, security, session control and media control functions.

To further increase employee productivity with Unified Communications. With thousands of employees spread around the globe, a Unified Communications platform that combined multiple devices, phone numbers, voicemail, email, instant messaging, presence, audio and video conferencing, and other real-time collaboration tools into a centrally managed system would significantly boost employee productivity at the airline.

To reduce telecom costs. The airline realized it could reduce opex and capex in its

network by optimizing its fixed-line and mobile carrier spending, replacing costly legacy equipment with efficient IP technology, consolidating communications with flexible SIP trunking services, and simplifying its network provisioning and management.


David Sims is a contributing editor for TMCnet. To read more of David’s articles, please visit his columnist page. He also blogs for TMCnet here.

Edited by Erin Monda







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