: Add, edit, or delete phonebook entries from your iPhone to be reflected on the GM40E hardware. How to Download and Install
: If you have a legitimate .ipa file provided by an IT department: download-gm40e-telefonbuch-ipa
: 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. : Add, edit, or delete phonebook entries from