The Voice-CID process includes the following:  

A Network Service Application (NSA) - intercepts the incoming call and transfers the call to the Phone Service Application.

The Phone Service Application (PSA) - provides the storage of and access to the Subscriber's contact files containing voice signatures and phone numbers of family, friends and associates.

Voice Identification - the PSA asks the caller "who's calling?" and the caller responds with a Spoken Name, such as  "Mr. Smith, Dave, Dad, Pop Pop, It's me, etc.".  The Spoken Name's wave-form is captured and validated by searching for the subscriber's Voice Signature File (VSF) for a matching name.  If a matching name is found, the name is spoken and the caller is connected to the Subscriber. If the Subscriber is unavailable, the call is transferred to Voicemail.   (Call Flow Diagram 1)

Caller-ID authentication - If a matching name is not found, such as the first time a family member, friend or associate calls, an authenticated caller has a bad cold, or the caller is using a hand-free devise, the PSA uses the Caller-ID to search the Subscriber Contact File (SCF). If the Caller-ID is found, the Caller is connected to the Subscriber and the Caller's Spoken Name is updated to the SCF.  If the Subscriber is unavailable, the call is transferred to Voicemail. (Call Flow Diagram 2)

Phone-Number Validation - If the Caller-ID is not available or possibly fraudulent, the PSA asks the caller "please enter or say your phone number".  The PSA searches for a matching number in the Subscriber's Contact File (SCF). If a matching phone number is found, the call is connected and the Caller’s Spoken Name is updated to the VSF.  If the Subscriber is unavailable, the call is transferred to Voicemail.(Call Flow Diagram 3)

Repeat Step 5 and Terminate - If a matching phone number is not found, the caller hears "please enter or say your phone number again." and the PSA repeats the search for a matching # in the SCF.  

If there is a matching phone number the Call is connected and the Caller's spoken name is added to the SCF.  If the Subscriber is not available, the call is connected to Voicemail. (Call Flow Diagram 4)

Callers who do not match VoiceCID, CID or Phone Number may send a MMS message to Subscriber stating the nature of the call. The Subscriber may respond by allowing the Caller to connect or be connected to Voicemail. Callers who indicate an EMERGENCY may leave Voicemail.  (Call Flow Diagram 5)

Enabling and Disabling  - The phone service application will provide Subscribers with the option to enable or disable VoiceCID.