Installation & Updates
Install TelefonX, connect your first SIP line, and install updates.
TelefonX
TelefonX is a native SIP softphone client for Apple silicon Macs running macOS 26 or later. The app is available in English and German and automatically uses the language selected in macOS.
Important: TelefonX is not an emergency calling service. Do not rely on TelefonX for emergency calls.
Configuration
Configure general options, SIP lines, audio, rules, backups, and hold music.
Guides
Make calls, use Contacts and Recents, schedule Call Reminders, and integrate with macOS.
FAQ
Solve common connection, audio, permission, and restore problems.
TelefonX Pro
Compare Free and Pro, manage subscriptions, and understand expiration behavior.