---
title: MBUF_TC_VO
framework: Kernel
role: symbol
role_heading: Enumeration Case
platforms: [macOS 10.7+]
path: kernel/mbuf_traffic_class_t/mbuf_tc_vo
---

# MBUF_TC_VO

## Declaration

```occ
MBUF_TC_VO = 3
```

## Discussion

Discussion Interactive voice, constant bit rate, lowest latency.