| Abbreviation | Definition |
|---|---|
| VPM | Voice Private Message |
| VPX | Virtual Path Cross-connect |
| VQA | Voice Quality Analyzer |
| VQE | Voice-Quality Enhancements |
| VQI | Voice Quality Improvement |
| VQL | Vector Quantizing Level |
| VQR | Voice Quality Rating |
| VQT | Voice Quality Testing |
| VQV | Voice Quality Value |
| VR | Virtual Router |
| VRR | Videoconferencing Reservation Request |
| VRS | Video Relay Service |
| Vrsm | Voltage, Ringing Signal Modified (inverted) |
| VRSP | Video Relay Service Provider |
| Vrsp | Voltage, Ringing Signal Positive |
| VSAT | Very Small Aperture Terminal |
| VSC | Vertical Service Code |
| VSK | Voice Starter Kit |
| VSM | Voice Service Module |
| VSP | VoIP Service Partner |