There are two conditions where BlindSquare manages the delivery of messages.  

1. When entering a beacon cloud (the asymmetric boundary of the beacon's radio signal)

In this case the VLM message is read when entering the cloud (based on distance rules provided).  If there is a heading (child) record that matches the device's compass heading, with a range < 120 degrees, BlindSquare will say "Straight ahead", and then speak the "Message EN" contents.  The expression "STRAIGHT AHEAD" is provided automatically by BlindSquare.  If the range is greater than 120 degrees, the "Straight ahead" message is suppress as a range this large would render the message inaccurate.

2. While within a Beacon Cloud,  the device is shaken.

This feature is provided to the traveller to review a) where they are currently as defined by the Beacon Cloud and b) what direction options exists.   When responding to the "shake" BlindSquare will read the VLM Message EN text and then proceed, starting with NORTH, then EAST, South and West reciting all messages around the compass rose.   All headings will be read providing the traveller stands still.

If the traveller turns the device, the MESSAGE EN matching the new compass reading will be read.    Active movement will usurp any message being voiced.   As BlindSquare advances around the directional options it will prefix the messages with the 4 major cardinal directions, North, East, South and West before reading the MESSAGE EN text.