David Duffett

Ionica Ltd. is a non-trading company. The company is headquartered in Manchester, the United Kingdom.

Aculab Plc manufactures and distributes computer related products. It offers high density media processing boards and host media processing software, IP boards and software, TDM boards, SS7 and signalling, and a performance tuned VoiceXML/CCXML interpreter. The company was founded by Alan Pound in 1978 and is headquartered in Milton Keynes, UK

Dolphin Telecom Plc operates a digital mobile network. It combines four mobile communications for organizations such as digital radio, mobile telephony, status and text messaging and packet data transfer using Tetra. The company is located in Basingstoke, UK

Alliance Systems, Inc. is a supplier of mobile workforce management and communications solutions. The company is based in Plano, TX. Alliance Systems was acquired by Mobile Data Solutions, Inc. on April 09, 1997 for $1.43 million.

Digium, Inc. engages in the provision of hardware and software products to enterprises and telecommunications providers. It offers business phone systems, telephony cards, asterisk training, and asterisk hardware. The company was founded by Mark Spencer in 1999 and is headquartered in Huntsville, AL.