| Business | Phone |
| Phoenix Network Cabling & Fiber Optic Services 5025 N. Central Ave. #339, Phoenix 85012 | (602) 714-8168 |
| Level One Communications, Inc. 6718 N. 15th Street, Phoenix 85014 | (602) 606-2889 |
| TalkSwitchPhones.com 2942 N 24th St, Ste 114, Phoenix 85016 | (602) 753-0648 |