---
title: cancelChannelSoundingSession()
framework: corebluetooth
role: symbol
role_heading: Instance Method
path: corebluetooth/cbperipheral/cancelchannelsoundingsession()
---

# cancelChannelSoundingSession()

## Declaration

```swift
func cancelChannelSoundingSession()
```

## Discussion

Discussion Cancels the active channel sounding session, if it exists.