| Abbreviation | Definition |
|---|---|
| VMU | Virgin Mobile USA (mobile phone network) |
| VMWI | Voice Message Waiting Indicator |
| VMY | Voice Mobility |
| VN | Virtual Network |
| VNL | Via Net Loss |
| VNS | Virtual Network System |
| VNT | Very Nice Telephone |
| VNTR | Variable Number Tandem Repeats |
| VO | Voice Objects |
| VO | Voice Only |
| VODAFONE | Combined Voice, Data, Telephone: |
| VOIP | Voice Over IP (Internet Protocol) |
| VoIPTXT | Voice over Internet Protocol Text |
| VOL | VOLume |
| VON | Voice Over Network |
| VOP | Velocity Of Propagation |
| VOP | Voice Over Packet |
| VoX | Voice eXchange |
| VP | Virtual Path |
| VPLS | Virtual Private LAN (Local Area Network) Service |