1969
Porta Systems established to provide products
to operating telephone companies

1970
Company's first U.S. patent. A line cutover system
that automated Bell Operating Companies transfer
of customer lines from old electromechanical
switches to new electronic switches.

1972
Automated the first testing of subscriber lines and
translations prior to a switch "cutover."

1973
Miniaturized Line Surge Protector (protecting
equipment and personnel from lightning
and other power surges).

1975
High Density Block -- a 40% space-saving
at central offices.

1979
Computer-Administered Main Distribution Frame.

1979
Integrated Repair Center Trouble Management
and Line Testing.

1981
Solid-state data protector (DELTA, first to
reduce reaction time to nanoseconds).

1989
Migrate OSS products to world standard
computing environment.

1991
High speed data protector (to meet the
trend toward connecting computers by
copper lines in local area network).

1992
Introduction of complete integrated suite of
OSS for Provisioning and Maintenance.

1993
Reached milestone of testing over half of the lines
of one of Europe's largest telecom companies.

1994
6A Protector Module developed as a new
generation protector against electrical fast
transient wave-forms.

1997
Enhanced OSS applications suite to world class
architecture and end-to-end functionality.

1998
Introduction of Mark III, leading edge hardware,
firmware and software to rapidly and accurately
diagnose line status.

2004
Introduction of Series 505E blocks providing
solid, reliable protection in Category
5E applications.

2005
Introduction of Series 606 block providing
protection for critical Network and Power Over
Ethernet (POE) circuits operating at
Category 6 levels.

2006
Introduction of Security Product line providing
surge protection and allowing video
transmission over CAT 3 or better cable
for the video surveillance market.