I have now numbered the photos of the wiring, I hope this helps to understand what I have done.
Photo 1, overall view of the Accenta G4 panel
Photo 2, Outside box connection on panel
Photo 3, connection to outside box
Photo 4, connection of speech dialler on panel
Photo 5, connection to speech dialler
Photo 6 wiring diagram for outside box as shown in Accents manual
Photo 7 wiring diagram for speech dialler as shown in speech dialler manual
Photo 8 connection of keypad on panel
Photo 9 connection to key panel