Ever seen 'VoIP caller' pop up on your phone and wondered what that actually means? Honestly, it's simpler than it sounds.

So what's a VoIP caller? It's basically someone calling you through the internet instead of through traditional phone lines like Verizon or AT&T. VoIP stands for voice-over-internet-protocol, and all the audio gets routed through your broadband connection rather than cell towers or fiber optics.

Here's how it works: when someone makes a VoIP call, their voice gets converted into digital signals that travel over the internet through a router. That signal then gets converted back into a regular phone signal before it reaches you. Pretty straightforward once you break it down.

The thing is, you've probably already used this technology without even realizing it. Ever made a call through Skype, Google Voice, or Facebook Messenger? That's VoIP. Now businesses are catching on too. Around 35% of companies currently rely on VoIP systems for their day-to-day operations, and the industry is projected to grow about 15% annually through 2027.

Why are businesses jumping on this? Cost savings, mainly. A VoIP caller system doesn't require expensive specialized hardware like traditional phones do. You just need your existing computers and internet connection, then download an app. Plus you get features like call forwarding, call encryption, and the ability to work from anywhere as long as you have the softphone app. And if your business grows, adding more lines is way cheaper than buying additional physical phones.

Now, if you're getting calls and need to figure out what's a VoIP caller versus a regular call, there are a few ways to check. Turn on your caller ID first. You can also try reverse phone lookup services to identify who's calling, or look up the domain name that might be associated with the VoIP caller. Some packet analyzer tools can even show you the IP address details if you're more tech-savvy.

If you're getting spam VoIP calls, you have options. Most phones let you block numbers directly. You can also register with the national Do Not Call registry if you want to cut down on telemarketing. For the more technical route, you can configure your router to block specific VoIP applications, though that takes some work.

One thing to remember: just because it's a VoIP caller doesn't mean it's a scam. Tons of legitimate businesses use VoIP technology now, so that call could be completely legitimate. The key is doing your due diligence and verifying where it's coming from before deciding whether to pick up or block it.