# VoIP Push
> Push notification mechanism that wakes a softphone app to receive incoming VoIP calls

VoIP push notifications wake sleeping softphone apps to receive incoming calls reliably.

## What is VoIP Push?
VoIP push is a specialized [push notification](/voip-glossary/push-notifications/) mechanism that wakes a [softphone](/voip-glossary/softphone/) application when an incoming call arrives — even when the app is closed or the device is in sleep mode. On iOS, Apple provides a dedicated VoIP push (PushKit) framework; on Android, high-priority FCM messages serve a similar purpose.

## Why VoIP push matters
Without VoIP push, softphone apps would need to maintain a persistent connection to the SIP server, draining battery life. VoIP push allows the app to sleep until needed, then wake instantly to ring. This is critical for a native phone-like experience.

## Acrobits push infrastructure
[Acrobits Cloud Softphone](/cloud-softphone/) includes a production-grade VoIP push notification infrastructure that handles Apple PushKit and Google FCM, ensuring near-instant call delivery across both platforms with high reliability at scale.

## Related Terms
- [Push Notifications](/voip-glossary/push-notifications/)
- [Softphone](/voip-glossary/softphone/)