Before I start please understand I am NOT from WI and I agree with other posters that if an agency feels they need to or has a reason to test equipment frequently then that is solely their business. And if non-affiliated scanner listeners don't like it well.........tough.
That being said I have a few questions and comments about this and I am NOT trying to stir any ****.
I fully understand the use of pager testing to signal shift change or duty crew responsability tours, in either a career, combination, POC or volly situation.
I also understand as res6cue stated that ISO requires "circuits to be regularly tested" (we test ours once weekly at 1900hrs Tuesday). Does anyone know the recommended frequency of these tests by ISO?
Just to reply to 1268's statements "I have had the privilege of working in Fire/EMS in 3 states and this type of page testing and or radio testing is done in each and every one of them." Just a check-in here on the East coast, I monitor SE PA, South Jersey, North DE and North MD and don't recall any testing at more than weekly intervals.
Also "spoken like someone who's not had a pager strapped to there side. Your blood races EVERYTIME those tones drop." I understand your stand here but I disagree with this statement. I have had a pager (several at times.....) on my belt since 1979 amd I can assure you my blood stopped racing on pages a couple of decades ago. My more typical response now is more likely to be "Crap, I wish I could get more sleep!" (maybe we run more, or more likely I'm just getting old and cranky).
As said above I do carry pagers, have had the same Minitor II since the mid 90's (VFD owned), Motorola Advisor II alpha about 2-3 yrs (County owned for FD dispatches) and a Titan-3 flex (Employer owned for Refinery FD/ERT dispatches). Started out with a Minitor I in '79 and moved on to a II in early '80's. During all that time I (and my pager) have worked at construction, welding, demolition, auto repair and heavy industry. I have ridden motorcyles (street & dirt) and ATV's. They have come along with me camping, flying, boating, hiking, partying and just my everyday life. They have suffered through scapes, falls, drops and few plunges into waterways and mud. They have also come along on thousands of Fire/rescue calls and the associated bumps, bangs and sweat (yuk!) Through all of this I have had the belt clip on my first Minitor II break off and thats it as far as failures go! I believe I have missed 4 dispatches (while in the local area) over that time, two were due to basically being in a 'cave' below ground and the other two were attributed to being in radio dead spots also at the time. My station's alerting system (lights/bell/klaxton siren until 90's) has been controlled by a Federal Ten-Ten since the early 1970's, if there's power it works!
I have seen several of our pagers die horrible deaths, mostly from truama, all with a story of how it wasn't the users fault

But in all my time the instance of pagers failing to alert has been extremely rare and most times it can be attributed to other conditions.
Have other departments seen high instances of pagers failing to alert? Have I and my dept been very fortunate all this time? Have some depts seen the rate of failure rise to a level that requires daily testing? (Those Depts that are not using tests to signal shift changes or other actions mentioned above).
Again I'm not looking to stir the pot in another state's forum just trying see how things are (or can be) so different across the country as we all do the same job.
Stay safe.