Tap the contact from the All Contacts list that you want to add the number to. After tapping the contact, the phone number from the received call is automatically added to the next available phone ...

To add someone as your emergency contact, they need to be saved to your iPhone's Contacts list with a cellphone number. Adding someone as an emergency contact won't send them any sort of notification.

Contacts list facilitate users to send a group message to everyone in the list. Users can click on the Lists option, there they have to select the desired list for longer and choose the Message ...