phone companies

SBC Communications Inc.
SBC sells long distance, DSL Internet service, and phone and data products and services in Rockford.
http://www.sbc.com/

VocalTec
Enables voice and multimedia communications over packetized networks, the Internet and intranets.
http://www.vocaltec.com/

Qwest Communications
Local Exchange Carrier (LEC), large wholesale and retail provider of voice and data services.
http://www.qwest.com/

BellSouth
Local Exchange Carrier (LEC) with local to global offerings in voice, data and Internet.
http://www.bellsouth.com/