"So what do you do?"
1 - "I work for the fire brigade, in the technical bit, I'm not a firefighter. It's good fun though, you get to go and play in the fire station every day!"
2 - "I work on communications equipment for the fire brigade, all the radios, phones, networking stuff, that kind of thing"
3 - "I look after all the paging, radios, phones, networking, control rooms and anything else with a network connection for the third biggest Fire and Rescue Service in the world. It's pretty involved, with a lot of responsibility."