OSS Worldwide Sales
 and Support Offices

Porta Systems Corp.
6851 Jericho Turnpike, Suite 170
Syosset,  NY  11791
USA

Tel:   1.516.364.9300
Fax:  1.516.682.4674
Email: oss-sales@portasystems.com

Porta Systems Ltd.
Rowley Drive
Stonebridge Industrial. Estate
Coventry CV3 4FG
West Midlands
UK

Tel:   +44 (0)24 7630 8404
Fax:  +44 (0)24 7630 5467
Email: sales@portasystems.co.uk