Note: Read why this site appears to be in plain text.
| Payment method | Description |
|---|---|
| ACTA | Americas Carriers Telecommunications Association |
| ALTS | Association for Local Telecommunications Services |
| APPA | American Public Power Association |
| BICSI | BICSI: A Telecommunications Association |
| Comptel | Competitive Telecommunications Industry Association |
| NECA | National Exchange Carrier Association |
| NSCA | National Systems Contractors Association |
| NTCA | National Telephone Cooperative Association |
| OPASTCO | Organization for the Promotion and Advancement of Small Telecommunications Companies |
| PCIA | Personal Communications Industry Association |
| USTA | United States Telephone Association |