But Android has a list of emergency numbers you can dial without unlocking the phone, why wouldn't they use that?
This means in this case, MS Teams was configured as the default "Calling app" and the issue could have been prevented at 2 level:
- at the Android level, if the user dials an emergency number, don't use the default "Calling app" and use a special "safe" calling app to ensure the call succeed even if a user-installed app is misbehaving.
- at the MS Teams level, allow emergency calls to succeed even if the user isn't logged in (or any other reason that could prevent an emergency call to be made, really).
As for WhatsApp, at least on my device, it's not a "Calling app", and as such cannot override the default calling app. I don't have Signal installed to check.
To appear there, apps have to declare they are phone apps and handle the proper calls (an "Intent" in Android jargon) when the system receive a request to make a phone call. WhatsApp, Signal and Telegram do not do that: you are only able to initiate a call when already inside the app.
That doesn't make sense, the user has to pick the app to dial with before they have an interface to enter the number.
> Why on earth would you want apps to be able to intercept calls on a phone?
Android devices are not phones. They are computers that come preinstalled with some apps, one of which is a phone app. Importantly: They are not marketed as PHONES. They are marked as "Smartphones". Just search for the word "phone" on the websites of any major Android device manufacturers.
The distinction is important.
Be careful when punishing children from "using the phone". Today, this means that they cannot use the app called "phone". This incident is a stark reminder that "phone" is an app today, not a physical device.
But you are dead wrong about the word "phone". It still means those little black rectangles. If you primarily think of those little black rectangles as computers (or social media machines) then the word "phone" has shifted meaning to match that. If you punish a child by banning them from "using the phone" you will absolutely get the horrified reaction you'd expect.
Of course words vary in meaning throughout the world and maybe "phone" really does mean the classical phone app in your area, or in your daughter's social group. But that's exceptional, regardless of age.
Apparently, the "phone" in "smartphone" is about as relevant as is the "fun" in "funeral".
Yes, actually.
> Shells ? No.
Also, yes.
> There are some BASIC interpreters thoght, which is a start.
There are also Java, etc., IDEs with which you can develop full Android apps. And have been for nearly a decade, at least.
Because there are housands of users even on HN that WANT apps like Signal to be able to manage secure encrypted calls like a first-party app with the same rights. Basic software freedom and all that.
I want Signal, Slack, Teams, my apartment buildings intercom system, etc, to be able to present their own native incoming calls through the same dialogs that regular calls come through. But not at the cost of potentially not being able to call emergency services...
If you want to allow alternative VOIP apps and things like that to exist, at that point the OS must allow routing that number to any app that claims it can handle (outgoing) phone calls.
Understand that calling emergency services on VoLTE is essentialy VoIP as well - noone here disagrees that this is a horrifying bug. But the issue with this bug is not the APIs that allows VoIP apps to integrate into call system (after all, those APIs also make Signal/WhatsApp/Skype/Teams calls work over systems like smartwatches, Android Auto and Bluetooth car integrations) but the fact that Android somehow missed the fact that a buggy app can stop a call.
The question is what should happen if such an app takes an excessively long time handling the event. In this case, the OS should not wait for the app and should directly go on making the call. The bug seems to be that the OS did wait, so a misbehaving app can effectively block phone calls by e.g. going into an infinite loop.