How can I send messages to a group of Contacts?
In the message list screen, touch the start chat icon to write new text / multimedia messages. Select ‘Start group conversation’. Click “type a name, phone number, or email address” box to start the input method. Enter group numbers in the box by manually entering the phone number or choose by contacts. Write the information you want. Click the button and your message will be sent. If the message failed to send a red circle with an exclamation mark will appear.