Technology Marketing Corporation (TMC(R)) announces that Mark Spencer, president of Digium Inc., original creator of Asterisk and pioneer of open source telephony, has agreed to deliver the opening keynote address at its INTERNET TELEPHONY Conference & EXPO East 2006, on January 24-27, 2006 at the Ft. Lauderdale Convention Center in Ft. Lauderdale, Florida.

Mr. Spencer's address, which is open to all registered attendees, will take place Tuesday, January 24th at 11:30am EST. Registration for the conference is now open at http://www.itexpo.com.

INTERNET TELEPHONY Conference & EXPO, held since 1999, is the world's largest and best-attended VoIP trade show. Last October, TMC's INTERNET TELEPHONY Conference & EXPO in Los Angeles attracted over 7,000 buyers and sellers of IP Telephony products and services. For this upcoming January show, TMC projects total attendance to exceed 8,500.

"Mark Spencer is clearly one of the most influential figures in VoIP. The founder of the revolutionary Asterisk Open Source PBX, Mr. Spencer is credited with helping to accelerate the growth VoIP has seen over the past several years," said Rich Tehrani, TMC president and conference chairman for INTERNET TELEPHONY.

"We are dedicated to furthering open source development in the telephony industry," states Mr. Spencer. "With the anticipated growth of VoIP solutions, we hope our perspective on the role open source will play as the industry evolves will provide INTERNET TELEPHONY attendees with new insight into the future of the telecom industry."

In addition to Mark Spencer's appearance, INTERNET TELEPHONY Conference & EXPO East 2006 features keynotes by Tom Ridge, CNBC Anchor Ron Insana, and executives from IBM, Cisco, AT&T, Aculab, General Motors, Avaya, Covad, Quintum, Nortel, Level 3, Netcentrex, Interactive Intelligence, Time Warner Telecom, AudioCodes and Expedient Systems.

Registration for the conference and trade show is now open: http://www.itexpo.com. Vendors interested in exhibiting or sponsoring should contact Dave Rodriguez immediately at 1-203-852-6800, ext. 146 or e-mail drodriguez@tmcnet.com.

Press inquiries regarding Mark Spencer's address can be directed to Mostafa Razzak at 23-31 Communications: (646) 442-3361 or email m.razzak@23-31.com. Press inquiries regarding Digium and Mark Spencer can be directed to Janine Savarese at MRB Public Relations (732) 758-1100 or email jsavarese@mrb-pr.com.