Trillium Offers Industry's First Comprehensive Portfolio of IP Telephony Software Solutions; Enables Scaleable Network Elements Ranging from Softswitches to IP Appliances.

Business Editors/Technology Writers

SUPERCOMM 2000

ATLANTA--(BUSINESS WIRE)--June 6, 2000

Trillium Digital Systems Inc., the leading provider of communications software solutions, announced the industry's most complete offering of proven IP telephony software products that, combined with Trillium's expert professional services, offers communications equipment manufacturers the opportunity to quickly build and deploy IP telephony network elements that meet and exceed the performance and interworking requirements of next-generation networks.

By providing a comprehensive solution of IP telephony software, including H.323, Media Gateway Control Protocol (MGCP), MEGACO/H.248, SS7-over-IP (SIGTRAN), SIP (Session Initiation Protocol) and SIP-BCP-T (SIP Best Current Practices for Internet Telephony), Trillium solidifies its position as a premier provider of IP telephony technologies that enable next-generation network applications, such as enhanced services, unified messaging, audio and video telephony.

"Trillium is pleased to offer customers the industry's most complete suite of standards-based IP telephony software solutions," said Jeff Lawrence, president and chief executive officer, Trillium Digital Systems.

"In addition to the breadth of our portfolio, our IP telephony software is scaleable and supports distributed fault-tolerant/high-availability system architectures, enabling communications equipment manufacturers to adapt industry-leading software technologies to their various equipment requirements.

As the Internet and PSTN networks converge, a key benefit of Trillium's IP telephony software suite is its capability to operate and interwork with the Trillium SS7, ATM and ISDN protocol software solutions."

Trillium IP Telephony Portfolio

Trillium's IP telephony product portfolio includes solutions for standards-based IP telephony communications protocols, including H.323, GCP (MGCP and MEGACO/H.248), SS7-over-IP (SIGTRAN), SIP and SIP-BCP-T (SIP Best Connection Practice), used in a broad range of communications network equipment, such as softswitches, media gateways, gatekeepers, media gateway controllers, call agents, signalling gateways, SIP servers and IP appliances.

H.323 is a cornerstone technology that provides the basis for establishing voice and multimedia communications over packet-based networks, such as the Internet.

Recently, Trillium announced the availability of the communications industry's first H.323 v3 IP telephony software solution, enabling real-time fax and gateway-to-gatekeeper communication, in addition to services supported by previous versions, such as video conferencing in IP-based networks.

Trillium's new H.323 v3 release includes the entire suite of H.450 supplementary services and Annex E. Trillium's H.323 protocol software solution for IP telephony consists of H.323 Control, ASN.1 Encoder/Decoder - PER and TCP/UDP Convergence Layer source code software products.

Trillium's H.323 FT/HA product, available in Q4 2000, will further enhance the H.323 stack, enabling it to operate in a distributed active/standby environment.

Trillium's H.225 Annex G-based, gatekeeper-to-gatekeeper communication protocol, available in Q3 2000, facilitates call completion between H.323 administrative domains. Annex G also provides for cross-domain address resolution, access authorization and call usage reporting.

MGCP and MEGACO/H.248 are device control protocols that enable the convergence of legacy telephony networks with the IP-based network infrastructures by separating the signalling and service capability, SS7 termination capability and the media transmission capability.

Trillium recently announced the availability of the communications industry's highest-performing MGCP software solution, demonstrating a record-breaking performance of 23,000 messages per second on media gateway controllers (more than 12 times faster than other solutions) and 24,500 messages per second on media gateways (more than 13 times faster than other solutions).

Trillium's Gateway Control Protocol product will be enhanced to support the joint ITU-IETF specification for MEGACO/H.248 in Q4 2000. This will enable communications equipment vendors to build network elements that are compatible with the deployed MGCP infrastructure and also to leverage the advanced features and functionality provided by the MEGACO/H.248 protocol.

SS7-over-IP (SIGTRAN) is a set of IETF-specified standards for transporting message-based PSTN traffic over IP-based networks. The SIGTRAN framework defines a modular structure that uses a common, reliable transport protocol and allows the definition of adaptation modules for different PSTN control protocols, such as ISDN and MTP Level 3.

The Stream Control Transmission Protocol (SCTP) functions as a reliable transport delivery mechanism for other multimedia and wireless frameworks, such as H.323, MGCP, MEGACO/H.248, SIP and 3G wireless. The MTP Level 3 User Adaptation Layer (M3UA) supports the transport of any SS7 MTP Level 3 user signalling (ISUP and SCCP) messages over IP using SCTP.

ISDN User Adaptation Layer (IUA) is used for backhauling Q.921 user messages (Q.931) over IP using SCTP. Trillium's initial release of the SS7-over-IP solution, in Q3 2000, will include the SCTP and M3UA. The solution will be enhanced to support IUA functionality in Q4 2000.

SIP (Session Initiation Protocol), a standard specified by the IETF (International Engineering Task Force), is a lightweight, transport-independent, text-based protocol used for signalling in Internet conferencing and telephony. SIP-BCP-T is a set of extensions to enable MGC-to-MGC communication.

The initial release of the Trillium SIP product, in Q4 2000, will include SIP and SIP-BCP-T functionality to enable the rapid deployment of SIP-based network elements.

Trillium's professional services organization offers next-generation communications equipment manufacturers the opportunity and resources to accelerate time-to-market, reduce costs and minimize product development risks.

Communications equipment manufacturers can engage Trillium's professional services organization for value-added software integration, customization and consulting services and focus their own scarce engineering talent on the product value differentiation to rapidly develop and deploy high-performance products that help them compete successfully in the dynamic marketplace.

For additional information on Trillium's complete set of IP telephony software solutions, see: http://www.trillium.com/products/ip/

Trillium Digital Systems is the leading provider of communications software solutions for the converged network infrastructure. Trillium's source code solutions are used in more than 500 projects by industry-leading suppliers of wireless, Internet, broadband and telephony products.

Trillium's high-performance, high-availability software and services reduce the time, risk and cost of implementing SS7, IP, H.323, MGCP, ATM, Wireless and other standards-based communications protocols. Trillium is an ISO 9001-certified software company. Additional information is available at http://www.trillium.com.

Note to editors: Trillium, Trillium Digital Systems and TAPA are registered trademarks of, and The World's Source for Communications Software, Trillium Compliant, Software on Silicon, Trillium on Board and Quick!Start are trademarks of, Trillium Digital Systems Inc. Other trademarks are trademarks (registered or otherwise) and service marks of the respective trademark owners.