PARIS, France, May 12, 2000 - As the highlight of the SIP 2000 Exhibition held in Paris, May 9-12, Indigo Software demonstrated a world first to Internet telephony insiders by coupling its CPL (Call Processing Language) Editor and CPL Server with an Indigo SIP User Agent^TM and an Indigo SIP Server^TM.

Based on XML (Extensible Markup Language), CPL is used to describe and control Internet telephony services. Currently in development within the Internet Engineering Task Force (IETF), CPL is unique insofar as it is specifically geared towards service creation by end users. This makes it an ideal complement to the Session Initiation Protocol (SIP) when considering advanced Internet telephony services that integrate VoIP with existing Web and Email features.

Witnessed by both industry players and conference participants, this development captured the attention of enthusiastic attendees and was welcomed by international academic and scientific communities.

" Indigo's CPL editor and server are a great step towards personalized SIP services, making it possible for end users to create sophisticated and portable telephony services with ease, " said Henning Schulzrinne, Associate Professor of Computer Science and Electrical Engineering at Columbia University, New York, and co-author of both SIP and CPL.

" The introduction of such tools will profoundly impact upon the way communications services are conceived and utilized universally. In particular, it will infer a flexible relationship between end users and customer-attuned Service Providers, " said Emmanuel Bertrand, CEO & CTO of Indigo Software. " The Indigo demonstration was effectively the first time that customized, end user created, SIP services were successfully grafted to Web and Email services in such an intuitively easy and speedy way. "

Presently, Indigo Software is developing its advanced range of communications software, enabling resolute new services such as WebPhone Redirection^TM, Personal Home Page Response^TM and Business Home Page Response^TM among others.

For more information :

• SIP 2000 Conference & Exhibition : http://www.upperside.fr/basip.htm
• Session Initiation Protocol (SIP) : http://www.cs.columbia.edu/sip
• Call Processing Language (CPL) and the IETF IPTel Working Group : http://www.ietf.org/html.charters/iptel-charter.html

Indigo Software is blazing the trail in absolute Internet communications^TM by marrying the power of SIP with the unlimited possibilities of Java. Designing and delivering communications software truly tailored to the Internet, Indigo offers unprecedented solutions to the exploding Service Providers market. Indigo products radically transform the end user experience of integrated communications.

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May 12, 2000 - Indigo CPL Editor^TM and CPL Server^TM Steal the Show at SIP 2000 Exhibition