Sources and verification

Tephone separates facts, interpretation and commercial data so you can see what is known, what it means and when it was last checked.

Official-source-first

Core specifications and support facts start with manufacturer technical specifications and official support documents. Each published fact keeps its source and verification date.

We fail closed

When reliable data is unavailable, Tephone hides the field or explains the limitation. We do not ask AI to guess missing device facts.

Continuously verified

Source snapshots are compared over time. Meaningful changes trigger validation and page revalidation before updated facts are published.