| Acronym | Meaning |
| XML | Extensible Markup Language |
| DSOM | Distributed System Object Model |
| PSTN | Public Switched Telephone Network |
| AMS | American Mobile Satellite Corporation |
| ADCCP | Advanced Data Communications Control Protocol |
| ITU | International Telecommunications Union |
| W3C | World Wide Web Consortium |
| CCI | Common Content Inspection |
| CMOS | Complementary Metal-Oxide Semiconductor |
| VCSEL | Vertical-Cavity Surface-Emitting Laser |