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Industry Deep Dive

How I Ditched My Landline Forever Using OBi and Google Voice

By Katie Floyd Industry Deep Dive
How I Ditched My Landline Forever Using OBi and Google Voice

Let me paint you a picture: I was paying $35 a month for a landline I used maybe four times. Twice to call my mom back when she couldn't reach my cell, once to order a pizza during a dead-battery emergency, and once to confirm a doctor's appointment. That's it. That was the entire value proposition of my home phone in a given month.

Something had to give. And once I stumbled down the rabbit hole of VoIP adapters and free calling services, there was no going back. The short version: I set up an OBi adapter with Google Voice, and now I have a fully functional home phone number that costs me exactly nothing per month. Here's how the whole thing works — and why it might be worth doing for you, too.

What Even Is an OBi Adapter?

If you've never heard of OBi (made by Polycom, now owned by Obihai), you're not alone. It's not exactly dinner party conversation. But the device itself is dead simple: it's a small box — about the size of a deck of cards — that plugs into your router and lets you connect a regular analog phone to internet-based calling services.

So instead of running a phone line through your wall from a telecom provider, you're routing calls over your home internet connection. The OBi adapter bridges the gap between your old-school corded or cordless phone and a modern VoIP (Voice over Internet Protocol) service. You keep the physical phone you already own. You just cut out the middleman — and their monthly bill.

Why Google Voice Is the Perfect Partner

Google Voice is a free service from Google that gives you an actual phone number you can use to make and receive calls. It's been around since 2009, it's tied to your Google account, and for personal use in the US, it's completely free for domestic calls and texts.

On its own, Google Voice works great on your smartphone or computer. But pairing it with an OBi adapter means you can use it on a real physical phone sitting on your kitchen counter — the kind your parents still instinctively reach for when something important happens.

The two services work together almost seamlessly. You configure the OBi device through a web portal, link it to your Google Voice account, and within about 20 minutes you have a home phone number that rings an actual handset. Incoming calls work. Outgoing calls work. Voicemail works. It feels exactly like a regular landline, except your phone bill is zero dollars.

The Setup Is Easier Than You'd Expect

I won't lie — there's a small learning curve if you've never messed with network settings before. But it's genuinely not that bad. Here's roughly what the process looks like:

Step 1: Get an OBi adapter. The OBi200 is the most common entry-level model and usually runs around $40–50 on Amazon. One-time cost. That's it.

Step 2: Set up Google Voice. If you don't already have a Google Voice number, you can claim one for free at voice.google.com. You'll pick a number from available options in your area code.

Step 3: Configure the OBi. You plug the OBi into your router with an ethernet cable, connect your phone to the phone port on the OBi, and then log into the OBi device portal from your computer's browser. From there, you link your Google Voice account. Google has to authorize the connection, which involves a quick verification step.

Step 4: Test it. Pick up the phone. Dial a number. Hear it ring. Try not to feel smug about never paying for a landline again.

The whole process took me about 30 minutes the first time, and most of that was me second-guessing myself and re-reading instructions I'd already correctly followed.

A Few Things Worth Knowing Before You Jump In

This setup is genuinely great, but it's not completely without caveats.

911 calls are complicated. This is the big one. Google Voice does support 911, but it's not the same as a traditional landline where your address is automatically attached to the call. You need to register your address with Google Voice, and even then, you should have a backup plan. If you have a cell phone, use it for emergencies.

Your internet has to stay on. No internet, no phone calls. If you lose power or your router goes down, so does your home phone. For most people this is a non-issue, but it's worth knowing.

Call quality depends on your connection. For most standard home broadband, the audio quality is completely fine — actually better than a lot of traditional landlines I've used. But if your internet is slow or congested, you might notice it.

Google Voice has some limitations. You can't port a number into Google Voice for free (there's a one-time fee), and international calling costs money, though rates are low. For straight domestic US use, though, it's hard to beat free.

Who This Is Actually For

This isn't a setup for everyone. If you've already gone fully cell-only and never look back, great — you probably don't need this. But there are some real use cases where having a dedicated home number still makes sense:

For me, it was a mix of the first and last. My mom refuses to believe cell phones are reliable, and I was tired of paying for a service I barely used. The OBi/Google Voice combo solved both problems for a one-time $45 hardware investment.

The Bigger Picture

There's something kind of satisfying about this whole setup that goes beyond the money saved. It's a reminder that the telecom industry has been charging us for things we could largely do ourselves for years. The infrastructure of a home phone — the number, the routing, the voicemail — doesn't have to cost $35 a month. It can cost nothing, with a little bit of setup and a willingness to learn how the pieces fit together.

In an era where we're all paying subscriptions for everything from movies to meditation apps, finding something that used to cost money and making it free feels almost rebellious. Your landline doesn't have to be a line item anymore. It can just be a phone that rings when someone calls.