---
title: NWParameters.ServiceClass.signaling
framework: network
role: symbol
role_heading: Case
path: network/nwparameters/serviceclass-swift.enum/signaling
---

# NWParameters.ServiceClass.signaling

A service type for low-loss tolerant, inelastic flow, jitter tolerant, bursty but short rate, and variable size connections.

## Declaration

```swift
case signaling
```

## Discussion

Discussion An example of traffic that uses this service type occurs when the system needs to establish and tear down a VoIP call.

## See Also

### Service Classes

- [NWParameters.ServiceClass.bestEffort](network/nwparameters/serviceclass-swift.enum/besteffort.md)
- [NWParameters.ServiceClass.background](network/nwparameters/serviceclass-swift.enum/background.md)
- [NWParameters.ServiceClass.interactiveVideo](network/nwparameters/serviceclass-swift.enum/interactivevideo.md)
- [NWParameters.ServiceClass.interactiveVoice](network/nwparameters/serviceclass-swift.enum/interactivevoice.md)
- [NWParameters.ServiceClass.responsiveData](network/nwparameters/serviceclass-swift.enum/responsivedata.md)