Possible Clues:

• 'Hey ____' (start of a phone voice command)
• Counterpart of Alexa
• The voice of the iPhone
• Voice of many smartphones
• Her name is Norwegian for 'beautiful woman who leads you to victory'
• Acronymic Apple assistant
• Drill sergeant's address
• One who talks on the phone a lot?
• Apple spokesperson?
• Giver of iPhone answers