Siri didn't talk when she woke up, just wrote.

Siri wakes up without saying anything but writing;

1, open the phone settings, and click the auxiliary function;

2. Drop down the accessibility interface, find and click siri；;

3. Enter the siri setting interface and turn off the input with Siri.

Siri is more closely integrated with the system:

The pre-merger version of Siri integrated a large number of API of network services. Like what? OpenTable, tickets, taxi magic and so on. Siri has been integrated into the system since it was acquired by Apple.

Are you online? In the Siri video of iOS 5, after a new short message appears, Siri initiates interaction. It means that he has entered the background of the system and can take over important system functions.