For Seniors: Call Contacts with Siri on the iPhone 4S
If you want Siri on the iPhone 4S to make phone calls, first make sure the people you call are entered in your Contacts app and include their phone number in their records.
If you want to call somebody by stating your relationship to her, such as Call sister, be sure to enter that relationship in the related field in her contact record and make sure that the settings for Siri include your contact name in the My Info field.
Press and hold the Home button until Siri appears.
Speak a command such as Call Harold Smith. or Call Mom. If you want to make a FaceTime call, you can say FaceTime Mom.
If there are two contacts who might match a spoken name, Siri responds with a list of possible matches. Tap one in the list or state the correct contact’s name to proceed.
The call is placed. To end it before it completes, you can tap the Home button and then tap End.
To cancel any spoken request, you have three options: You can say, Cancel, tap the Microphone button on the Siri screen, or tap the Home button.