We’re right here when you need us.
Tech hiccup? Billing question? Talk to a neighbor in Eureka—day or night.
Phone Support
(406) 889-1500
Email Support
support@interbel.com
Main Office (Eureka)
6 Dewey Ave, Eureka MT 59917
Mon–Fri, 8:00 AM – 4:30 PM
Call or visit us
Speed Test – Measure your current internet performance
User Guides – Wi-Fi setup, voicemail access, SmartHub login
SmartHub App – Download for iOS or Android
Installation Prep Checklist – What to know before your install date
Tools & Information
Don’t see your answer?
Our support team is here and happy to help.
Frequently asked questions
How do I stop robocalls?
We offer free robocall blocking for InterBel voice customers. Just give us a call at (406) 889‑3311 and we’ll turn it on for you.
Our system uses a nationwide database to block most spam calls—but it won’t catch everything. You should see a big drop in unwanted calls to your landline.
Will my phone work during a power outage?
Yes—if you have fiber voice service and a traditional corded phone, your line should still work during an outage.
Our fiber network includes battery backup that keeps your phone service running. Just plug a basic touch-tone phone into your wall jack, pick up the receiver, and you should hear a dial tone.
Important: The battery lasts about 4 hours. If yours seems weak or drained, call us at (406) 889‑3311. Don’t have a corded phone? Stop by our office—we keep extras in stock.
I don’t have a dial tone—what should I do?
Here’s a quick checklist to get your phone line back up and running:
1. Restart Your Equipment
- Modem: Unplug it from power, wait 30 seconds, and plug it back in. This refreshes the connection and reloads the software.
- Phones & Devices: Restart your phone, computer, or tablet. This helps clear any software glitches.
2. Check All Cables
- Phone Cord: Unplug the line from both the modem and wall jack, then plug it back in. Try swapping the ends, too.
- Power Cord: Make sure the modem is securely plugged into a working outlet.
- Ethernet Cable (if used): Disconnect and reconnect both ends. Try swapping the cable ends.
3. Use the Right Filters
- Modem: It should be plugged directly into the wall—unfiltered—or use a splitter if the jack is shared with a phone.
- Phones: All phones need filters between the jack and the cord. Free filters are available at our office.
- Other Devices: Fax machines, alarms, etc., also need filters on their phone line connection.
If your home is filtered at the outside NID (where the service enters), our techs will let you know if you still need indoor filters.
4. Check the DSL Light
- Blinking: Your modem isn’t connecting—could be wiring, filtering, or modem issues.
- Solid: The modem is connected to the network.
I hear static or noise on my phone line—how can I fix it?
Try these quick steps to track down and fix the issue:
1. Swap the Phone Cord
Replace the phone cable with a new one—it’s a common source of static.
2. Check for Filters (if you have DSL)
Make sure a filter is installed between every phone and the wall jack. No filter = more noise.
3. Try a Different Jack
Plug the phone into another jack in your home. If that’s not possible, test at your NID (network box outside)—see our “No Dial Tone” FAQ for how.
4. Test a Different Phone
If you have a second phone, try it on the same jack. If the static goes away, the issue is with your original phone.
5. Cordless Phone Tips
- Move the base to a different jack.
- Keep it away from Wi-Fi routers or other wireless devices—they can cause interference.
Still hearing static? Call us at (406) 889‑3311 and we’ll help troubleshoot further.
How do I troubleshoot DSL or no dial tone issues?
If your phone isn’t getting a dial tone, follow these steps to figure out what’s going on:
Try a Different Jack
If you have more than one phone jack, plug your phone into a different one and check for dial tone.
2. Test at the NID (Outside Box)
If none of your indoor jacks work, go outside to your Network Interface Device (NID)—usually on the side of your house.
- Use a standard screwdriver to open the NID.
- Look for an orange tab that slides to reveal a test jack.
- Plug your phone directly into that jack and listen for a dial tone.
3. What the Results Mean
- Dial tone at the NID? The issue is inside your house wiring—call us for next steps.
- No dial tone at the NID? The issue is with your outside line—call us from a neighbor’s phone or visit our office.
My fiber internet isn’t working—what can I check?
Try these quick steps before giving us a call:
1. Check the WAN Light on Your Router
• WAN light OFF: Your router isn’t getting a signal from the fiber terminal (ONT).
→ Make sure the Ethernet cable is plugged firmly into the WAN port on your router.
→ Unplug and replug both ends. Try swapping the cable ends to ensure a clean connection.
• WAN light ON (solid or blinking): Good news—your router is seeing a signal from the network.
2. Bypass the Router (Optional)
If your router might be the issue, you can test the connection directly:
• Plug the Ethernet cable from the ONT straight into a laptop or desktop.
• If you get a connection this way, the issue is likely with your router—not the fiber service.
Still not working? We’re happy to help—call (406) 889‑1500 anytime.
What do I need to stream internet video?
To stream shows, movies, or live events, you’ll need three things:
- A screen — like a TV, monitor, or tablet.
- A streaming device — such as a Roku, Fire TV Stick, Apple TV, or smart TV.
- An internet connection — like Interbel’s fiber service.
We recommend purpose-built streaming devices (like Roku or Fire TV) for the smoothest experience—they tend to perform better than built-in TV apps or DVD players.
Just connect your device to Wi-Fi (or Ethernet), log in, and start watching your favorite apps like Netflix, Hulu, YouTube, or Disney+.
Do I have to pay monthly for a Roku or Fire TV?
Nope. The device itself is a one-time cost. But you’ll need to pay separately for any streaming services you subscribe to (like Netflix or Paramount+). Some apps, like YouTube or Pluto TV, offer free content.
Should I secure my Wi-Fi with a password?
Yes—always.
Here’s why:
- Protect your connection: Without a password, anyone nearby can use your internet—slowing down your speeds or running up your bill if you have data caps.
- Protect yourself: If someone uses your open Wi-Fi for illegal activity, you could be held responsible since it’s tied to your account.
- Prevent long-range access: Specialized equipment can connect from much farther than you’d think—even hundreds of feet or more.
Need help locking it down? Call our support team at (406) 889‑1500 and we’ll walk you through it.
How do I set up my InterBel email?
To configure your InterBel email on a computer, phone, or tablet, use the following settings:
Incoming Mail (IMAP)
- Server: imap.interbel.net
- Port: 993
- Security: SSL/TLS
- Username: Your full email address (e.g., youremail@interbel.net)
- Password: Your email password
Outgoing Mail (SMTP)
- Server: smtp.interbel.net
- Port: 465
- Security: SSL/TLS
- Username: Your full email address
- Password: Your email password
Note: If you prefer to use POP3 instead of IMAP, please contact our support team at (406) 889‑1500 for assistance.
How do I access my InterBel Webmail?
You can check your email from any browser—no app needed.
To log in:
- Click here to open Webmail.
- Enter your full InterBel email address and password.
- (Optional) Check “Stay signed in” if you want your browser to remember you.
Need help? Call our support team at (406) 889‑1500—we’re happy to walk you through it.
How do I check my spam filter?
You can review and manage your spam messages anytime online.
To log in:
- Click here to open the Spam Filter.
- Enter your full InterBel email address and password.
- Click Sign In.
Need help navigating the spam filter? Give us a call at (406) 889‑1500—we’ll walk you through it.
Can I get a personalized email address?
Yes! InterBel offers custom email hosting for just $25/year—plus the cost of your domain name.
Whether you’re a business or just want a professional email (like you@yourname.com), we can help you set it up.
Want to learn more? Click here or call us at (406) 889‑3311.