Automatic Wake-Up for iOS

  • Published on Jul 18, 2025
  • 2 minute(s) read
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Applicable to End Users

Signal Capture can run in the background at all times to receive messages and calls in real time. For the app to run in the background, you must not remove the app from memory.

You can activate the Wake-Up feature on the app to allow Smarsh to automatically wake-up (launch) the app every seven minutes to receive calls and messages, when the app is removed from memory.

Feature Overview

When the app is closed and removed from memory, the wake-up feature can automatically launch the app every seven minutes to deliver messages and calls. You must manually activate the feature. Once activated, the app will receive a phone call every seven minutes, from Blocked TeleMessage TM SGNL Archiver Number, to launch the app. The following image depicts the app behavior when the wake-up feature is enabled:

To avoid unwanted prompts from the phone call, you must block the caller on the iOS contacts application.

Important

Block the caller in the iOS contacts application to avoid prompts. Do not add them to the Signal blocked contacts.

The following image depicts the app behavior when the wake-up feature is disabled:

The default battery saver configuration for automatic wake-up is 100% and the notifications are pushed every seven minutes. This can cause the device's battery to drain. You can ask Smarsh to lower the batter-saver percentage to reduce battery drain. If the battery saver configuration is set to 50%, the app is running for half of seven minutes, which is 3 and half minutes. Notifications for messages and calls are received only for 3 and half minutes and the app is killed for the remaining time, until the next push. 

Enabling Wake-Up

  1. Open the application.

  2. Tap the  icon > Settings > Wake Up.
    >  > 

  3. Toggle the Wake up when app is closed option to ON.

  4. In the confirmation pop-up, tap OK.

  5. You will receive a short call with a single ring to your phone from Blocked TeleMessage TM SGNL Number.

    Note

    If you have not granted the local contacts permission to the app, the contact will not be created. The incoming call will be displayed as the incoming from the number +1 (978) 206-1926.

  6. Block this number from your native phone application:

    1. Open the contact details on you native phone application.

    2. Tap Block this Caller.

    3. Tap Block Contact to block the contact.

Automatic wake-up is successfully enabled. You will receive a call to your Signal registered number every seven minutes. Signal Capture is launched and calls and messages are delivered without any interference in the foreground.

The default battery saver configuration for automatic wake-up is 100%. This indicates that when you manually close the app or remove it from memory, the app is launched every seven minutes by the call from Blocked TeleMessage TM SGNL Number. If you encounter battery consumption due to automatic wake-up settings, contact Smarsh support.