When someone calls my mobile when unanswered instead of voicemail they get the message the number is not recognised please check and call again.
I have been with ID for many years
not a new sim
not a new phone
no changes to any settings
happened in the last few days
happens with mobiles and landline calls from everybody
if I dial 123 voicemail tells me no messages
RG12 post code
I am a voluntary emergency Responder so it is quite urgent