A method, system, and program for intermediary device initiated caller identification are provided. A trusted telephone network detects a call initiation connection from an origin device. The trusted telephone network then brokers a connection between the origin device and an external server enabled to perform a caller identity authentication service. A voice utterance for a caller is received at the external server from the origin device. The server authenticates a caller identity associated with the voice utterance and transfer the authenticated caller identity to the trusted telephone network. The trusted telephone network then specifies services available for the call according to a caller profile for the authenticated caller identity.