Subex Azure is now Subex
December 1, 2007

Bangalore, INDIA: Subex Azure Limited is now Subex Limited. The name change, establishing Subex as the primary brand, comes into effect from today.

Subex Ltd, a leading global provider of Operations Support Systems (OSS) solutions for telecom operators, has also unveiled a resplendent new logo. The new logo, designed by its advertising agency TBWA, is coloured predominantly in purple with the last letter partially in yellow.

Subash Menon, Founder Chairman, Managing Director & CEO, Subex Ltd said, “We adopted the name Subex Azure primarily to highlight the acquisition and subsequent integration of UK firm Azure in June 2006. This was in line with our strategy to leverage the recall and positioning of Azure in the market. The company has now fully benefited from that strategy and since then proceeded to acquire Canadian firm Syndesis. Now it’s time to reposition Subex, the mother brand, as the primary brand.”

The new name is the culmination of successful acquisitions to date, incorporating all assets and brand equity into a unified brand. It is also a reflection of the company’s global consolidation and continuous product innovation.

Sanjeev Gadre, Vice President – Marketing, Subex Ltd said, “The stylised ‘X’ in the new Subex logo stands for the `X’ factor that sets Subex apart in its domain. The colours purple and yellow are warm and reiterate Subex’s vigour and passion. The usage of the lowercase type is representative of the company’s youthful dynamism. The straight and thick lines are evocative of the strength with which the company leads the industry.”

The company will undertake a comprehensive multi-modal communication campaign to highlight its changed identity and new logo.

About Subex Limited

Subex is a leading global provider of Operations Support Systems (OSS) solutions with a mission to empower telecom operators to achieve competitive advantage and deliver new service experiences to subscribers. The company pioneered the strategic concept of the Revenue Operations Center (ROC) – a centralized and integrated infrastructure for end-to-end monitoring, measurement and control of the operator's revenue chain - to foster operational dexterity and hence sustained profitability.

Subex's software portfolio powers the ROC and its best-in-class solutions enable new service creation, subscriber-centric fulfillment, provisioning automation, revenue assurance & cost management, data integrity management, fraud management and interconnect/interparty settlement.

Subex's customers include 32 of the world's 50 largest telecom operators by revenue. The company has more than 150 installations in over 60 countries. Subex was named in the prestigious Deloitte Technology Fast 500 Asia Pacific 2006 list of companies, underlining the company's growth and leadership status.

For more information please visit www.subexworld.com

Forward Looking and Cautionary Statements

Certain statements in this release concerning Subex’s products, strategy and future growth prospects are forward-looking statements, which involve a number of risks, and uncertainties that could cause actual results to differ materially from those in such forward–looking statements. The risks and uncertainties relating to these statements include, but are not limited to, market acceptance of Subex’s products and services, Subex’s ability to implement its growth strategy, competition in Subex’s areas of business and general economic conditions affecting the telecom industry.

Further information:

In Europe or Asia please contact Peppa Sheridan at Milner LLP
tel: + 44 7725 121189
peppa.sheridan@milnerllp.com

In the U.S. please contact Guy Murrel at Catapult PR-IR
tel +1 303-581-7760
gmurrel@catapultpr-ir.com

In India please contact Shivaram Lakshminarayan at Genesis Burson-Marsteller PR
tel: +91 9886136796
shivaram.l@bm.com