Leading International Telecommunications Company to Standardize on Callidus Platform

LONDON–(EMWNews – July 28, 2008) – Callidus Software Inc. (NASDAQ: CALD), the leader in

Sales Performance Management (SPM), today announced that Orascom Telecom

(CASE: ORTE.CA, ORAT EY), has selected the Callidus Software TrueComp®

Manager, TrueAnalytics™, TrueResolution® and TrueInformation®

software modules to manage sales performance and incentive compensation

programs for its direct sales force and indirect sales channels. Under the

agreement, signed in the second quarter of 2008, Orascom Telecom is

expected to use Callidus’ software modules for its direct sales force and

indirect channel sales representatives in Egypt, Algeria, Tunisia, Pakistan

and Bangladesh.

In challenging economic times and faced with unprecedented competition,

companies are pursuing new ways to drive revenue and optimize

profitability. Sales performance and pervasive performance management are

the untapped levers to bring these strategies to life. Callidus’ solutions

help companies align corporate objectives with sales strategy. Together,

they unlock a company’s ability to combine sales and incentive compensation

with key aspects of employee performance management.

Callidus’ SPM software solutions deliver a high ROI in a very short period

of time by allowing sales executives to make better incentive decisions,

providing timely visibility into channel operations, and giving them the

flexibility to rapidly deploy new sales and distribution strategies and

tactics.

About Callidus Software®

Callidus Software (www.callidussoftware.com) (NASDAQ: CALD) is the leading

provider of on-premise and on-demand Sales Performance Management (SPM)

solutions to global companies across a broad range of industries. Our

software allows innovative enterprises of all sizes to strategically manage

incentive compensation, set quota targets, administer producers, and align

territories, resulting in improved sales and distribution performance. Over

1.8 million salespeople, brokers, and channel representatives have their

sales performance managed by Callidus Software’s products.

About Orascom Telecom

Orascom Telecom is a leading international telecommunications company

operating GSM networks in six high growth markets in the Middle East,

Africa and South Asia, having a total population under license of

approximately 450 million with an average mobile telephony penetration of

approximately 41% as of March 31st, 2008. Orascom Telecom operates GSM

networks in Algeria (“OTA”), Pakistan (“Mobilink”), Egypt (“Mobinil”),

Tunisia (“Tunisiana”), Bangladesh (“Banglalink”), Zimbabwe (“Telecel

Zimbabwe”), and has acquired in early 2008 a license to operate mobile

services in North Korea. Orascom Telecom had over 74 million subscribers as

of March 31st, 2008.

Orascom Telecom is traded on the Cairo & Alexandria Stock Exchange under

the symbol (ORTE.CA, ORAT EY), and on the London Stock Exchange its GDR is

traded under the symbol (ORTEq.L, OTLD LI).

© 1998-2008 Callidus Software Inc. All rights reserved. Callidus

Software, the Callidus Software logo, Callidus TrueAnalytics, TrueComp,

TrueComp Grid, TrueComp Manager, TrueConnection, TrueFoundation,

TrueInformation, TruePerformance, TruePerformance Index, TruePerformance

Indicator, TrueMBO, TrueAllocation, TrueProducer, TrueQuota, TrueReferral,

TrueResolution, TrueTarget and TrueService+ are trademarks, servicemarks,

or registered trademarks of Callidus Software Inc. in the United States and

other countries. All other brand, service or product names are trademarks

or registered trademarks of their respective companies or owners.