Aspects of the subject technology provide for secure, privacy-preserving access to electronic conferencing. In one or more implementations, a device may obtain a link that corresponds to a call with a second device, encrypt a request to join the call using a key obtained using the link, and send the encrypted request to a server for delivery to the second device. The link may also include information used to identify an alias for an account associated with the second device. The device may send the encrypted request to the server with the alias. The device may receive an encrypted response to the request from the server, obtain an identifier of the call from the encrypted response, and then receive an invitation to join the call associated with the identifier.