1. A method of operating a call center, the method comprising: maintaining in electronic storage personal profiles of a number of clients of a service provided by the call center, wherein at least one of the personal profiles includes identification of one or more entities authorized by the respective client to act on behalf of the respective client; receiving from an inquiring party via an electronic network an inquiry whether a particular one of the one or more entities is authorized by a particular one of the number of clients to perform a proposed action on behalf of the particular client; and automatically sending an electronic message to the inquiring party indicating whether or not the particular entity is in fact authorized by the particular client to perform the proposed action.