| Abbreviation | Definition |
|---|---|
| VADB | Virtual Auto Dial Backup |
| VAS | Value Added Service |
| VAS | Value Added Services |
| VAZO | Violating All-Zero Octet |
| VBR | Variable Bit Rate |
| VCA | Voice Connecting Arrangement |
| VCC | Virtual Call Center |
| VCC | Voice Call Continuity |
| VCC | VSAT (Very-Small-Aperture Terminal) Control Center |
| VCE | Voice Clarity Enhancement |
| VCF | Virtual Call Facilities |
| VCM | Vertical Conection Module |
| VCO | Voice carry-over |
| VCT | Variable Cam Timing |
| VDS | Visole Digital Solution |
| VDSL | VHBR (Very High Bit Rate) Digital Subscriber Line |
| VDT | Video Dial Tone |
| VERT | Vertical (distribution frame) |
| VF | Voice Frequency |
| VF0 | Voice Fundamental Frequency |