Re: At least make sure your contract include TOIL
answer the phone and you will be online within 5 minutes etc
In the days before mass mobile phones I worked for a radio station which was based in a city centre. I was expected to fix anything and everything vaguely "technical" (and a lot more besides) on premises, at any hour of the day or night yet I was almost the lowest-paid employee, just above the cleaner and the "roadie". I couldn't afford a mobile 'phone, but had to be within ten minutes of a phone whenever on call (which sort of ruined dog walks) and within 45 minutes of the radio station which was tight, considering how far out of town I had to live in order to afford a place on my salary.
On the whole however, I did enjoy the job. Call-outs weren't all that often and my boss was a bit of a hoot. The worst part was some (by no means all) of the "on air" talent, who would get all shirty if you didn't ring in as soon as they'd put the phone down to the pager company, and who often refused to perform simple remedial tasks which would have sorted the problem - even if only temporarily - and enabled them to get on with things while I travelled in to sort out the root cause.
Most common was refusing to switch to the "spare" studio despite failing equipment making working in the "main" studio very difficult. The studios were within about three or four footsteps of each other, but the swap-over procedure involved an "offer, accept, release" procedure that was easy with two people, but meant moving a couple of times between studios if there was no-one else available. Their biggest complaint however was "but it means putting all my records back in my boxes and moving them!"
Made a point once. A couple of years into the job I had had a bit of a salary increase and managed to save up enough for a mobile phone. One weekend I was up a local mountain with the dog and my parents when the pager went off. The problem was easily worked-around by moving a pair of jack plugs in the patch panel just behind where the presenter in question was sitting, but he flat out refused to do so, so I bundled mum and dad and the dog into the car, trundled down to the studio, and took the dog in with me, who proceded to snuffle around the presenter's legs while I swapped the jacks, fixed the root cause (which could easily have been left until Monday) and swapped the jacks back.
Didn't seem to bother the presenter...
...and as for the number of times I was called in for the likes of "yes, the printer is definitely 'on line'"...
When I left the company (to do a post-grad course on something unrelated) they didn't replace me. My boss left soon afterwards, and they found getting a replacement very difficult. For several months I found myself on a "retainer" to the radio station which was only a little lower than my original salary, with call-outs on top at twice my previous hourly rate. They'll only pay what you are worth when they realise what you are worth.
Oh, and my replacement lasted a year, after which the radio station moved premises (so all new kit) and did away with technical staff altogether, coming to a call-out-only arrangement with another radio station some 60 minutes drive away, though as the record players and cart machines were gone as were most of the CD players, with networked computers playing out most content, a lot of fixing could now be done on-line. Nobody is irreplaceable.