Joining an Existing Group Mesh

One of the current users in an Existing Group Mesh can allow new
users (one or more) in Open Mesh to join the Existing Group Mesh.
       Existing
   Group Mesh        Open Mesh                      Existing Group Mesh

1. To enter Mesh Grouping to join the Existing Group Mesh, press and
    hold the Mesh Intercom Button for 5 seconds on the headsets of
    one (You) of the current users in the Existing Group Mesh and the
    new users (D and F) in Open Mesh.

2. When Mesh Grouping is completed, the new users (D and F) will
    hear a voice prompt on their headset as Open Mesh switches to
    Group Mesh.