๐๏ธ Send announcement to device from Link
Send announcement to device from Link or other server. Announcement will be displayed in the messaging app. When user open the message - device must send confirmation to Link.
๐๏ธ Get Contact list
Returns list of all contacts
๐๏ธ Create or update Contacts
Creates or updates contacts
๐๏ธ Delete Contacts by theirs uids
Removes Contacts by theirs uids