3com
3com corporation (3com) provides secure, converged networking solutions on a global scale to businesses of all sizes. its products and solutions enable customers to manage business-critical voice and data in a secure and efficient network environment.
http://www.3com.com/index2.html
Elsa
Elsa
http://www.elsa.de/
Hs Data
Hs Data
http://www.hsdatasolutions.com/
Lan City (nortel)
Lan City (nortel)
http://www.nortelnetworks.com/index.html