Last working about one week ago when last used. When switched on more recently no "key" tones at security code entry and no verbal instructions over speaker but can hear on ear phone jack. Nothing unusual noted at the time.
As requested I re-loaded the latest software and re-loaded the English speaking voice. Still no sounds from speaker.
Okay, as I suspected, speaker has failed. Never mind I can operate for now with the ear phone jack. Thanks for your assistance.