| Business | Phone |
| Alt Communications 2800 Sumner Blvd # 190, Raleigh 27616 | (919) 954-8500 |
| Alternate Access Inc 301 Glenwood Ave # 220, Raleigh 27603 | (919) 831-1860 |
| Burroughs Communications Inc 5701 High Rock Ct, Raleigh 27604 | (919) 713-0874 |
| Communications Support Svc 6541 Meridian Dr # 101, Raleigh 27616 | (919) 790-1494 |
| Tricom Communication Svc Inc 219 N Boylan Ave, Raleigh 27603 | (919) 865-2000 |
| Trm Inc 335 Sherwee Dr # 104, Raleigh 27603 | (919) 779-0776 |
| Tel Ware Corp 1824 Industrial Center Circle, Raleigh 27603 | (919) 832-7200 |
| Inter-Tel Technologies Inc 121 W Morgan St, Raleigh 27601 | (919) 835-9910 |
| Office Communications Inc 3907 Tara Dr, Raleigh 27609 | (919) 783-0166 |
| Mitel Networks 412 Vernon Ter, Raleigh 27609 | (919) 789-8007 |
| Metro Telecom 5840 Mchines Pl # E, Raleigh 27616 | (919) 876-5840 |
| Warco Used Telephone Equipment 8204 Creedmoor Rd, Raleigh 27613 | (919) 846-6500 |
| Ttm Inc 8809 Gulf Ct # E, Raleigh 27617 | (919) 878-0406 |