The most common concern Montana businesses have about switching to VoIP is internet reliability. It is a fair question, especially in rural areas where broadband options are more limited than in Missoula or Billings. Here is a straightforward look at what VoIP actually requires and whether your connection can handle it.
What VoIP Actually Needs
VoIP calls use surprisingly little bandwidth. Here are the real numbers:
| Metric | Requirement |
|---|---|
| Bandwidth per call | 85-100 Kbps (upload and download) |
| Latency | Under 150ms (ideally under 80ms) |
| Jitter | Under 30ms |
| Packet loss | Under 1% |
For context, a 10 Mbps connection can support roughly 100 simultaneous VoIP calls. Most small businesses need 3-10 concurrent calls at most. Even a basic broadband connection of 25 Mbps has more than enough capacity.
Internet Options in Rural Montana
Internet availability varies significantly across Montana. Here is how different connection types perform for VoIP:
- Fiber. Excellent for VoIP. Low latency, high bandwidth, consistent performance. Available in some Montana towns but not widespread in rural areas.
- Cable. Good for VoIP. Sufficient bandwidth and generally acceptable latency. Available in most Montana towns.
- DSL. Adequate for VoIP in most cases. Lower bandwidth but usually sufficient for a small number of concurrent calls. Performance degrades with distance from the central office.
- Fixed wireless. Varies widely. Some fixed wireless providers in Montana deliver solid performance. Others have latency or reliability issues that can affect call quality.
- Satellite (Starlink). Improving rapidly. Starlink latency is now in the 25-60ms range, which is workable for VoIP. However, weather can cause temporary interruptions.
- Cellular hotspot. Generally not recommended as a primary VoIP connection due to variable latency and data caps. Can work as a backup.
How to Test Your Connection
Before switching to VoIP, you should test your internet connection for the metrics that matter. A basic speed test tells you bandwidth, but it does not tell you about latency, jitter, or packet loss. Ask your VoIP provider for a proper assessment.
Big Sky Telecom runs a comprehensive network assessment for every customer before setup. We test during peak usage times and identify any issues before your phone system goes live.
Improving Call Quality on Limited Connections
If your internet connection is marginal, there are steps to improve VoIP performance:
- Quality of Service (QoS). Configure your router to prioritize voice traffic over other data. This prevents large file downloads from affecting call quality.
- Dedicated VLAN. Separate your voice network from your data network for more consistent performance.
- Wired connections. Use Ethernet cables for desk phones instead of Wi-Fi. Wired connections are more reliable for voice.
- Upgrade your router. Consumer-grade routers often cannot handle QoS properly. A business-grade router makes a measurable difference.
When VoIP Is Not the Right Fit
We are honest about this. If your internet connection has latency over 200ms, frequent outages, or packet loss above 3%, VoIP may not deliver the call quality your business needs. In those situations, we will tell you. We would rather turn down a sale than put a customer on a system that does not work.
For businesses in that situation, SIP trunking with an existing on-premise PBX or waiting for improved internet infrastructure may be better options.
Bottom Line
Most Montana businesses, even in rural areas, have internet connections that support VoIP. The key is testing before you commit and configuring your network properly. Big Sky Telecom handles both as part of our setup process.
Request a free network assessment →
Big Sky Telecom provides hosted VoIP to businesses across Western Montana, including rural communities in the Bitterroot Valley, Flathead Valley, and Southwest Montana. Locally owned and operated in Missoula, MT since 1998.

