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In order for Wave to Unlock/Touch to work reliably, the Openpath Avigilon Alta Open app needs Location Services always enabled. The app uses Bluetooth Low Energy (BLE), which iOS and Android consider as part of their Location Services.
On iOS devices: The Openpath Avigilon Alta Open app also uses Motion Services in order to detect if a phone is in motion – if it is stationary, the Openpath Avigilon Alta Open background service will shut down in order to conserve battery. If the app detects the phone is moving, the Openpath Avigilon Alta Open service will resume in order to communicate with any nearby Avigilon readers.
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If you'd rather not enable these features, you can still unlock entries on iOS devices by using Wave to Unlock/Touch with the Openpath Avigilon Alta Open app open and Bluetooth turned on. On Android devices, Wave to Unlock/Touch won't work if Location Services is turned off regardless if the app is open or not, but you can still use the app to unlock entries by tapping on the lock icons next to the entries.
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