HIMS Braille Sense U2 User Manual page 403

Edit Box to enter E-mail is displayed.
2) After typing user ID which you want to add using computer
Braille, press "Enter".
3) With the user ID typed, adding contact is executed.
If you add a contact, the contact will remain "off-line" until the contact
accepting your request adding contact
After the contact accepting your request, the status will be turn "on-line".
16.3.2.2 Delete Contact
"Delete Contact" is a function to delete any contact registered in the
contact list. The Deleted Contact can't send a message to you and see
whether you're online or not.
The following is how to delete a contact.
1) Move to the contact which you want to delete on the contact list.
2) Press "Space-d(1-4-5)" or press "Enter" on the "Delete Contact"
after entering into sub menu of "Contact", by calling up the menu
using F2.
3) "Do you want to delete XXX in the contact list? Yes" message
appear. 'XXX' is user ID to delete. If you press "Enter", the contact
will be deleted.
If you want to cancel deleting contact, change to "No" by pressing
"Space" key or press F4 or "Space-e (dots 1-5)." After canceling deletion,
it is located on the contact list.
16.3.2.3 Block Contact
"Block Contact" is a function to block contact registered in the "Contact
list", in order not to send a message to you and see your access status.
It is different from "Delete" that after blocking contact, contact ID remains
in the Block list. But if you delete contact, the contact ID will disappear
permanently in the contact list.