Welcome to SecTel.io!


With this service, you can enjoy highest-grade end-to-end encryption with ever changing encryption keys every time you make a call. *)

This is an very short article on how to get you started quickly.


Please have your device linked by following the Setup tutorial at https://sectelio.freshdesk.com/support/solutions/articles/14000023382 which contains even a 2minutes video on how to create your account and link your device.


General Tips:

  • We recommend to use "Quickdial" buddies, not "Contacts" (Quickdials remain in-App only, Contacts are phone-wide). This is for improved privacy.
  • Be informed that long-tapping on a quickdial or call history entry allows various actions. Try it out.
  • Your caller name is e.g. abc123@sectel.io (6 digit alphanumeric username). Calling within the SecTel.io network you can omit the suffix "@sectel.io" for you convenience.



*) For increased security, our mobile App shows a verification phrase to verify with the other calling party once the call is established. If there was a Man-In-The-Middle (malicious listener) in the line, he would alter this verification phrase. The encryption key negotiation is based on newest models where every call uses a unique one-time key. Check https://www.sectel.io/technology/technical-details/ to read more about the technology.