| Business | Phone |
| Adc Adaptive Communications 91 E Tasman Dr, San Jose 95134 | (408) 944-0250 |
| Caspian Networks 170 Baytech Dr, San Jose 95134 | (408) 382-5200 |
| Co Sine Communications Inc 560 S Winchester Blvd # 500, San Jose 95128 | (408) 236-7515 |
| Cxr Telcom Corp 894 Faulstich Ct, San Jose 95112 | (510) 657-8810 |
| Fxc Communications 970 S 2nd St, San Jose 95112 | (408) 293-2000 |
| Cxr Larus Corp 894 Faulstich Ct, San Jose 95112 | (510) 657-8810 |
| Co Sine Communications Inc 560 S Winchester Blvd # 500, San Jose 95128 | (408) 236-7518 |