---
title: routeDataChannel
framework: avsystemrouting
role: symbol
role_heading: Instance Property
path: avsystemrouting/avsystemroute-5s2um/routedatachannel
---

# routeDataChannel

A data channel for communicating with the extension outside of any media session.

## Declaration

```swift
final var routeDataChannel: AVSystemRoute.DataChannel { get }
```

## Mentioned in

Routing and streaming media to remote devices

## Discussion

Discussion Use this channel for control messages, state synchronization, and other bidirectional communication needs that are not tied to a specific AVSystemRouteSession.