A telephone call may have more than one identifier, e.g., a billing telephone number and a caller's telephone number, within its signaling stream. Each identifier may have an associated call servicing profile. The invention determines which of several call profiles associated with identifiers within the call signaling stream should be used to service the call. The invention involves reading the identifiers, retrieving the profiles associated with the identifiers, if they exist, and selecting one of the profiles to use based on data in the profiles and a profile priority scheme. The invention may be realized in relation to an information assistance service.