Close this search box.

VoIP Speed Test

Even the best hosted phone systems require a proper network connection to bring the high-quality service you expect. To properly evaluate your broadband connection, a free speed test will quickly and accurately provide a glimpse of your system’s bandwidth and line quality. With a VoIP speed and VoIP quality test, you can expect to see what your current upload and download speeds are during moment you run the test. You can also use our VoIP Bandwidth Calculator below to estimate the bandwidth your company will need for high quality VoIP service.

VoIP Speed Test: Use our VoIP Bandwidth Calculator

Achieve Top VoIP Speeds: VoIP Bandwidth Calculator

A VoIP speed test is a great first step, but then what? If your upload speeds are less than 80 kilobytes per second, it’s likely you will experience call quality issues when a single call is taking place. For two concurrent calls, you may experience call quality issues with upload speeds less than 160kbps, for three concurrent calls, 240kbps, and so on. Then how does that number change when you factor in your company’s internet browsing, streaming services, or WiFi activity? Every group’s network usage varies, but the table below is a good starting point in understanding how your bandwidth is used. To account for fluctuations, we’ve allotted a 20% buffer in the calculations below.


Bandwidth AvailableBandwidth Used
by Web Browsing
Bandwidth Left
for VoIP
Max Concurrent
Calls (G.711)
Max Concurrent
Calls (G.729)
500 kbps260 kbps (1 user)140 kbps116
1 mbps510 kbps (2 users)280 kbps334
5 mbps2.8 mbps (11 users)1.2 mbps18152
10 mbps5.6 mbps (22 users)2.4 mbps37306
30 mbps16.8 mbps (66 users)7.2 mbps114920

Don't Meet The Requirements? We're Here to Help

VoIP speed test delivered not-so-good results? No two businesses are identical and neither are any two networks that they rely on. Even when companies experience similar distortions on their hosted voice traffic, it’s likely that each disruption has a different cause that’s specific to that company’s network. VirtualPBX corrects network inefficiencies found in a VoIP quality test by being able to accurately diagnose the precise causes of a company’s challenges. VirtualPBX delivers the most advanced diagnostics, corrections, and ongoing support to ensure business communications networks are optimized to exacting specifications – even if you’re not a VirtualPBX business phone system customer.

Additionally and beyond simple network analysis, VirtualPBX can also provide comprehensive, around-the-clock monitoring and maintenance of your network. This is ideal for either critical communications periods or, for some businesses with high call volume and an equally high reliance on it, 24-hour monitoring can be conducted in perpetuity. Because all of these services are unique to the company for which they are conducted, they also all begin and end with a close partnership. VirtualPBX engineering professionals listen carefully, ask clear and pointed questions, and are motivated to deliver your company’s ideal network conditions. You’ve already taken the first step by discovering if your network meets minimum VoIP requirements with a VoIP speed test. We’re here to help for the next step – network troubleshooting.