Phonebook Download (Automatic Phonebook Transfer From ... - Mopar

: Go to Settings > Privacy > Contacts and ensure the app has permission to access your phonebook.

: Ensure both your iPhone and the GM40E base station are on the same Wi-Fi network.

: If the device supports it, you may be able to skip the app entirely by using the Bluetooth Phonebook Access Profile (PBAP) to transfer contacts directly.

: Search for "GM40E" or the manufacturer's name (e.g., Gigaset, Yealink) on the Apple App Store . This is the safest way to obtain the latest, verified version.

: Add, edit, or delete phonebook entries from your iPhone to be reflected on the GM40E hardware. How to Download and Install

Use a tool like or Finder (on macOS) to sideload the app onto your device.