Documentation

Everything you need to install Known Caller and sync your store's customers to the devices you use every day.

Setup guides

Known Caller for WooCommerceInstall the plugin, connect your iPhone or Android, and start syncing customer contacts in minutes.

Quick links

Support & troubleshooting
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How it works

Known Caller adds a CardDAV endpoint to your own WordPress site. Your phone, tablet, or computer subscribes to that endpoint — the same way it would sync with iCloud or Google Contacts. Customer data never passes through our servers; it flows directly from your store to devices you authenticate.