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A related piece of information conveyed to the Inward WATS subscriber is the Dialed Number Identification Service (DNIS), the number that the caller dialed when accessing the service. With the information, the service provider can have several toll-free numbers directed to the same Call Center and provide unique service based on the number dialed. DNIS can also be used to identify other call routing information. For example, the WATS service can be configured to send a specific DNIS number that is assigned to callers from geographic regions based on city, area code, state, or country. ANI has two components, information digits, which identify the class of service1, and the Calling Party telephone number. PRIVACY Because ANI is unrelated to caller ID, the caller's telephone number and line type are captured by ANI equipment even if Caller ID Blocking is activated. The destination telephone company switching office can relay the originating telephone number to ANI delivery services subscribers. Toll-free Inward WATS number subscribers and large companies normally have access to ANI information, either instantly via installed equipment, or from a monthly billing statement. Residential subscribers can obtain access to ANI information through third party companies that charge for the service. SIMILAR SERVICES
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