| Acronym | Meaning |
 | CLEC | Competitive Local Exchange Carriers |
| PAL | Phase Alternating Line |
| RFP | Request For Proposal |
| FAQ | Frequently Asked Questions |
| ADCCP | Advanced Data Communications Control Protocol |
| ACU | Automatic Calling Unit |
| SWISH | Simple Web Indexing System For Humans |
| PCL | Printer Control Language |
| CERT | The CERT Coordination Center |
| W3C | World Wide Web Consortium |
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