When are Emergency Contacts contacted when using SOS via satellite?

See the "Share information with your emergency contacts" section in the support document for this.

You will get the option on your screen, when you text emergency services, to share the information with your emergency contacts.

If you do:

Use Emergency SOS via satellite on your iPhone - Apple Support

" If you set up emergency contacts in the Health app,

you can choose to notify and share information with them when you text

emergency services with Emergency SOS via satellite. When you choose to

share this information, your emergency contacts get these messages

automatically.

If your emergency contacts use iMessage on iOS 16.1

or later, you can share a live transcript of your conversation with

emergency services. This transcript includes:

• Your answers to the emergency questionnaire.
• A map with your location.
• The messages that you exchange with emergency services.

If your emergency contacts have a non-Apple device

or don't have iOS 16.1 or later, they receive a text message that alerts

them about your emergency. In the U.S. and Canada, this message comes

from the number 767911. In Europe, this message comes from 767112.

• The message says, "You're receiving this message because someone you
• know chose you as an emergency contact and used Emergency SOS via
• satellite."
• To receive additional text messages, your emergency contacts need to
• respond "YES" to the first message within 48 hours. If they respond
• "NO" or "STOP," they won't receive any more messages about Emergency SOS
• via satellite notifications (either for the current emergency or future
• emergencies).
• If your emergency contact responded "NO" or "STOP," they can receive
• future messages about Emergency SOS via satellite notifications again
• by texting "RESTART" to the same number.
• The additional messages include your name, the time that you
• contacted emergency services, your location, and the information that
• you provided about your emergency.

Your emergency contacts can't respond to the messages, other than

replying "YES" or "NO" when necessary. They don't need to contact

emergency services, because emergency services has already been

contacted for the emergency. "

Yes.