MTNG

Electrical and Scientific Apparatus

Owner

NACT TELECOMMUNICATIONS, INC.

DIGEN

Electrical and Scientific Apparatus

Owner

NACT TELECOMMUNICATIONS, INC.

IRIS CELERITY

Electrical and Scientific Apparatus

Owner

NACT TELECOMMUNICATIONS, INC.

MTN GATEWAY

Electrical and Scientific Apparatus

Owner

NACT TELECOMMUNICATIONS, INC.

MEDIA TRANSPORT NODE

Electrical and Scientific Apparatus

Owner

NACT TELECOMMUNICATIONS, INC.

MTN

Electrical and Scientific Apparatus

Owner

NACT TELECOMMUNICATIONS, INC.

IPAX

Electrical and Scientific Apparatus and 2 other

Owner

NACT TELECOMMUNICATIONS, INC.

VOIP-7

Lubricants and Fuels and 5 others

Owner

NACT TELECOMMUNICATIONS, INC.

TREKOS

Electrical and Scientific Apparatus

Owner

NACT TELECOMMUNICATIONS, INC.

NTS 2000

Electrical and Scientific Apparatus

Owner

NACT TELECOMMUNICATIONS, INC.

Jul 7, 1998