关于软件“calling home”（“phoning home”）的定义及相关疑问
Hey there! Let's break down what "calling home" (or its synonym "phoning home") means in the tech world, since it’s easy to misinterpret at first glance.
First, the core definition: across various tech discussions, "calling home" refers to software automatically sending telemetry, usage data, or system information back to its vendor’s servers—often without the user’s explicit, obvious consent, and sometimes even when the user has tried to disable this behavior. You’ve seen this term in contexts like blocking routers from doing it, running Windows 10 without this activity, or questioning if game engines like Unity check in during runtime—all these cases boil down to software reaching out to the company that built it.
I totally get why the names are misleading! At first, it sounds like a feature that makes an audio call to your house, but that’s not what’s happening here. These phrases are just casual, metaphorical ways to describe software "checking in" with its "home"—the vendor’s central systems.
To answer your specific questions:
- What is the "call" in this instance? It’s a network request (typically over HTTP/HTTPS, though other protocols might be used) that transmits data from your device to the vendor’s servers. This data can range from basic usage stats (like how often you use a particular feature) to detailed system configuration details.
- What is the "home"? "Home" here refers to the vendor’s backend servers—the origin point of the software, where the company collects and processes the data sent by the software.
- How was this term created? It’s a piece of organic tech jargon that evolved as connected software became more common. The metaphor mirrors how a person might call their home to check in, so it stuck as a simple, relatable way to describe software reaching back to its maker’s systems. It’s been in use for decades now, popping up as soon as software started having the ability to communicate remotely with its developers.
备注：内容来源于stack exchange，提问作者A.L
