: 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 download-gm40e-telefonbuch-ipa
: Ensure both your iPhone and the GM40E base station are on the same Wi-Fi network. : Search for "GM40E" or the manufacturer's name (e