You can create a new message from the Contacts detail
        page, either by typing your own message text or starting from templates of typical message content (Quick Messages). 
        You can also specify message options by adding an attachment, setting a priority, or scheduling a delivery.
    
        
            To send a text message to a contact:
         
        - 
                
                    On the Contacts page, navigate to the appropriate contact and tap it.
                
                
                    The contact details page appears.
                
             
- 
                
                    Tap Secure Text Messages in the Messages
                    section.
                
                
                    
                        A dialog appears and prompts you to either create a new text message or reply to an existing
                        conversation.
                    
                    
                        
                        
                    
                 
             
- 
                Do either of the following:
                
                    
                        - 
                            
                                To create a new message, tap Compose New Text.
                            
                            
                                The New Secure Text page appears.
                            
                            
                                
                                
                            
                         
                        - 
                            
                                To reply to an existing conversation, choose the appropriate thread from the list in the
                                Resume Conversations section.
                            
                            
                                The Handheld Client displays the most recent messages in the conversation—a scrolling list
                                of messages with the same subject, to and from the same recipient.
                            
                            
                                
                                
                            
                         
                    
                 
             
- 
                
                    Compose and send the message as described in How to Send a New Message or
                    How to Reply to a Message.