Phone, unfortunatly it cant work that way here. Firefighters as such do not specilise. Yes some do have the extra trianing to operate specialist appliances ie Hydraulic platforms and turntable ladders
Non operational jobs do exist but there in a small minority, and may only consist of up to a dozen posts, that is of course unless they have been reclassified and are now done by civilian staff. (Cheaper wages) Fire prevention requires a high degree of training with a minimum of 6 weeks spelised training. Depending on the Fire Authority the numbers of staff may only be 20/30. Even these jobs are now being filled by civillians.
Take it from me the strain put on a 48/50 yr old FF is horrendus. I'm a third generation FF my GF diedof a massive heart attck, my father has had several and by pass surgery. Me I've had 1 heart attack and quintuple by pass surgery. To top that I also suffer from COPD I've been on anti depressants with 1 failed suicide bid