sixwheeledbeast

Yes it's likely the system hasn't been serviced in a while and the standby battery is shot. Karizma is pretty old and obsolete they are also known to have issues with the NVM over time especially when they haven't been serviced. Also the detection is on a BUS (iD) wire configuration which is pretty uncommon. If you are doing a bit of work in the house and plan to use the alarm, it's worth considering the upgrade options.

If you go Texecom then use a Premier 24 Poly not an Excel

Getting back on topic... It's not good practice to run speaker circuits within the same cable as other circuits. I don't believe there is a rule for this apart from some manufacturers say you must not do it. Main concern in the wild is normally the other way, as in getting annoying data noise from bus devices out of your speaker.

I'd say new battery check the voltages, see how it goes but don't expect it to be reliable.

I think I could guess the code looking at the keypad... We don't provide defaulting codes or procedures here for security reasons. I would suggest you isolate all power then power up with a new battery then mains. Then make sure everything is back together and try and guess a few user codes you may have used, hopefully this will silence the tamper and allow a reset. It is possible this will trigger the external bell if you can't clear the fault so I'd want to have some ladders at the ready incase that goes rogue.

From what I know it is frequency they are all still 868, so a subtle change.

We don't allow defaulting information here. I can only suggest you ask the person you bought it from. Also do note that the ADT Visonic panels only accept ADT devices, they run on a slightly different frequency I believe.

I agree with above all too easy for the stuff to snap and create faults especially if it's been in a while.

Wouldn't fit anything that hasn't got sealed optics.

Better passives with resistors built in is an option too.

Sounds to me like there is still a tamper. Check the lid spring isn't missing and that it clicks when the lid is closed if that's the only thing that's been opened. All lights on normally means your in a menu waiting for a function and unrelated to the tamper fault while your in "day mode"

I'd say a call out would be considerable less time and money than the price to purchase a load of kit your not sure how to fit yet.

ADT dummy box more of a deterrent than a working system? If that was the case hardly anyone would fit a system. [Logan: ADT is whole different topic you can't compare a national to a local like that, start that topic somewhere else, please] Considering the knowledge you have shown about the components and operation (areas/zones) of the system and my experience giving advice here, you'll probably struggle to DIY. Minimum requirement will be batteries (probably replacing the bell at the same time) system checks with a multimeter (knowledge how to do these), walk test, beel test, operation checks etc etc. Even then you will have to hope the programming is to your liking, otherwise you'll have to learn how to program a system with limited access to manuals or the terminology in them. Someone that knows how to program a Menvier could likely recommission everything in less than an hour. Consider all this before you leap at the task of DIY, your playing with a safety system that could annoy your neighbours when you can't shut it up in the early hours, you've then lost some of your deterrent factor.

Doesn't have to be a sophisticated crook, bellbox attacks happen. All the components in a properly fitted system are designed to detect any tampering and sound an appropriate alarm.

TS series is pretty reliable if you don't need a hammer to operate the keys on the keypad yet. Power it up check all the voltages new battery see how you go. Maybe replace the bellbox as the battery could be busted (won't recharge)

If your looking for replacement recommendations your probably best looking at Texecom or maybe Eaton for something that would drop in easiest. Most systems will do what you need if you know how to fix and program it.

We cant give out defaulting codes or instructions for security reasons. You also have the issue of not having any of the current codes. I see a couple of options, get an installer to recommission and service it with the hope it's in serviceable condition not disconnected due to some intermittent fault. Alternatively fit a new system that hopefully you can work out how to do from the instructions onto the existing wiring. It's really down to how much you value your security and your time.

EFF have released there findings on there investigation into third party trackers with in the app. https://www.eff.org/deeplinks/2020/01/ring-doorbell-app-packed-third-party-trackers

Boot-lacing eight core, now that's an appropriate use of "hardcore".

The mind boggles...

Find a different company. Can't answer for why you didn't receive messages around false alarm calls, but consider that if you accidentally triggered the alarm it's possible the signal would be aborted automatically if you silenced it. Yes, if you have a system then you should consider getting it checked out/repaired/upgraded instead of missing with useless DIY plug and play tat.

My first thought is contact the local company and have your current system looked at, would think it's in your budget to get a full system working again. Monitoring is only useful if proper polled signalling unit which the best way is via an approved company.

Original and best. A nerd would know from the HUD

You didn't ask!