Mediatrix Telecom, Inc., a developer of IP telephony edge devices and software modules, announced the appointment of Terrence (Terry) W. Harron as vice president, World Wide Sales.

Stream International, a Solectron company, announced the appointment of K. Ramesh to the position of site director of the company's Mumbai, India customer interaction center.

Nortel Networks announced the appointment of D.G. (Greg) Mumford to the position of CTO. Mumford was previously president, Optical Long Haul Networks. He will be succeeded by Brian McFadden.

Celergy Networks announced it has appointed Rocky Zanzonico as the senior vice president of sales. The company has also appointed Jon Peacock as the senior vice president of marketing and business development.

Nuance announced the appointment of Lynda Kate Smith to the position of vice president and chief marketing officer.

Xevo Corporation, a developer of service management software for service providers,  announced the appointment of Michael Dering as president and chief executive officer.

Avaya announced that Michael Thurk will join the Avaya senior leadership as group vice president, systems.

Kanisa Inc., a provider of online self-help to the enterprise, announced the appointment of Hrishi Kamat as vice president of customer services.

TANDBERG announced that Andrew Miller will join the company as vice chairman and CEO.

Wicom Communications announced that Reijo Paajanen has been appointed as chairman of the Board, and Jonas Serlachius has been appointed to the Board of Directors. In addition, Mikko Karvonen has been appointed as Nordic Country Manager and Antti Ailio has been appointed to sales manager, United Kingdom and Ireland.

Convergent Networks, Inc. announced the appointment of Surya Panditi to the position of president and chief executive officer. Panditi succeeds John C. Thibault, who will remain chairman of the companys board of directors. Mike Dagenais was also announced as vice president of engineering.

HBR Technologies (HBR), a provider of network and security consulting, announced the hire of a new sales manager, Joel Hand.