| Business | Phone |
| Advantage Telecom 779 Montague Expy, Milpitas 95035 | (408) 262-9222 |
| Flex Interconnect Technol 1603 Watson Ct, Milpitas 95035 | (408) 956-8204 |
| Golden Gate Tele Systems 775 Montague Expy, Milpitas 95035 | (408) 262-6493 |
| Netcor Design Systems Inc 920 Hillview Ct # 195, Milpitas 95035 | (408) 956-1796 |
| San Jose Telephone 455 S Main St, Milpitas 95035 | (408) 262-5215 |