I'm looking for a way of handling an issue where my employer accessed HR data to share my mobile phone number with another employee. This was to use their own personal phone to contact me in what they considered an emergency. IMO it wasn't an emergency for which they needed to contact me urgently or directly.
Personally my objection is on the basis of privacy. I control who has access to my personal number, not my employer. The company is making noises of grudging acceptance, but has placed the onus on me to be contactable while at the same time saying that a company mobile isn't possible. There are even suggestions that I should be widely contactable outside of core working hours. My outgoing manager (retiring soon) has suggested that sharing of my number is confined to only a small group of users.I'm not comfortable with the possibility of further sharing of my mobile no.
I always screen incoming calls so unknown numbers are always ignored (As in this case, I didn't answer the call as I didn't recognize the originating number). My problem now is how best to respond.
I've re-edited this question to concentrate on the central issue without other distracting information. I'd appreciate answers that reference both obligations and rights under GDPR, as well as strategy for tackling the issue with my managers.