| Business | Phone |
| Executive Voice System 319 Smith St, Lewisville 75057 | (972) 293-3867 |
| Gardner Communications 101 Highland Lake Dr, Lewisville 75077 | (972) 219-2249 |
| A T & T Sales & Svc 1058 W Round Grove Rd, Lewisville 75067 | (972) 459-7500 |
| Acura-Tel 1565 W Main St 208 Pmb 225, Lewisville 75067 | (972) 539-9000 |
| Tyco Electronics 809 Holly Oak Dr, Lewisville 75067 | (972) 434-4604 |