TELUS Completes Deployment of Sigma Systems' OSS Service Management Solution for Wireless Voice and Data Services

TORONTO, - May 23, 2007 - TELUS has deployed Sigma Systems' Service Management Platform (SMP) to support service provisioning and activation of wireless voice and data services to more than 5.1 million subscribers.

TELUS, an $8.8 billion Canadian telecommunications carrier, chose Sigma's SMP because of the company's proven expertise deploying wireless operational support systems (OSS.)

"We wanted a service management platform that streamlines our creation and launch of wireless data, voice, messaging and premium content services," said Kevin Salvadori, executive vice-president, TELUS Business Transformation and CIO. "Sigma's OSS package provides an elegant framework for delivering the latest premium wireless content over 3G wireless data networks."

Sigma's Wireless Service Package provides TELUS with an open and configurable OSS service management solution that delivers emerging voice and data services over 2G, 2.5G and 3G wireless networks. The wireless solution encapsulates the service management domain expertise and best practices that Sigma has gained from working closely with some of the world's largest and most innovative telecommunications companies.

"TELUS' deployment how demonstrates Sigma is working closely with its customers to bring innovation to the wireless industry through next generation services," said Tim Spencer, president and COO, Sigma Systems. "TELUS is capitalising on the benefits of the end-to-end automation inherent in our Service Management Platform. As a result, TELUS has expanded the service creation and configuration tools necessary to manage its deployed OSS solution, allowing it to deliver additional value-added services to its rapidly expanding subscriber base."

As part of the deployment, TELUS is integrating:

o Sigma's SMP, which automates service provisioning and
activation, service authorisation and resource management for complex services on a multi-technology and multi-vendor service delivery network;
o Sigma Wireless Service Package that provisions all of TELUS'
voice and data services over the company's wireless networks (PCS - CDMA and iDEN);
o The Sigma Service Topology Manager (STM), a comprehensive
solution for modelling, assessing and managing the relationship between subscriber services and the underlying network to accurately provision all network-based services;
o The Sigma Service Creation Toolkit (SCT), a development toolkit
used by TELUS to rapidly create, configure and launch new wireless voice, data and premium content services;
o The Sigma Service Profile Manager (SPM), a CSR order tracking
and management web portal with the ability to manage the subscriber's service profile, order status and history.

About Sigma Systems
Sigma Systems is a premier provider and leader in the design, development, and deployment of OSS service management solutions. A global company, we automate Communications Service Providers' (CSPs) business and operational processes enabling them to define, activate, manage and diagnose subscribed, on-demand and real-time IP broadband and wireless services. Sigma All Play Solutions provide the "Intelligence Behind Converged Services Delivery".

Sigma's proven software provides CSPs with industry leading solutions for voice (circuit switch, VoIP, SIP, cellular voice), video (IPTV, DTV, ITV, VOD, PPV), data (DSL, DOCSIS, 2-way satellite, mobile and WiFi/WiMax data), and IMS-based services.

Sigma has 11 years' experience using a proven implementation methodology that provides rapid deployment integration and turn-up in multi-service, multi-technology operating environments. Today, we manage over fifty
(50) deployments for communications service providers, such as Cox Communications, Rogers Communications, TVCabo, Shaw Communications and Jupiter -@NetHome Japan, and others with a combined total of over 25 million subscribers managed on our platform, across North America, EMEA, CALA and APAC.

For more information, about Sigma Systems, please visit

TELUS (TSX: T, T.A; NYSE: TU) is a leading national telecommunications company in Canada, with $8.8 billion of annual revenue and 10.8 million customer connections including 5.1 million wireless subscribers, 4.5 million wireline network access lines and 1.1 million Internet subscribers. TELUS provides a wide range of communications products and services including data, Internet protocol (IP), voice, entertainment and video. Committed to being Canada's premier corporate citizen, we give where we live. Since 2000, TELUS and our team members have contributed more than $91 million to charitable and non-profit organizations and volunteered more than 1.7 million hours of service to local communities. Eight TELUS Community Boards across Canada lead our local philanthropic initiatives. For more information about TELUS, please visit

Media contacts:
Edwina Doyle, - Sigma Systems

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