1. A method, comprising: receiving a call processing message including a token representing encrypted data, the encrypted data including sensitive personal information associated with a call; initiating a call routing strategy based on receipt of the call processing message, the call routing strategy being configured to initiate a query specifying a comparison to be performed against a decrypted version of the encrypted data associated with the token, the query providing an interface between the call routing strategy and the decrypted data to prevent the call routing strategy from accessing the decrypted data; and determining a call routing decision for the call based on a result of the comparison returned from the query.