Caller and Callee validation,authentication,approval, security via dialler app interface for authencity or authentication

please include features to integrate contacts with ADSI,popmail or any mail servers of organizations, government,public mail servers linked to Individual Identity numbers providers, PAN to ensure or validate the customer service executives call with public key ,employee key validated with OTP or via dialler interface. the keys can be provided to the customer at the of sale specific to IIN, PAN of the Individual and linked with organizatios business ID number along with department ID, employee ID of organizations. such a feature in android would be great value add.

What do we think or say about this idea?