You've upgraded to a decent fibre connection, so calls and video meetings should be flawless. Instead, voices cut out mid-sentence, video freezes during the client pitch, and someone always asks "can you hear me?" at least once a call. The usual assumption is that the broadband isn't fast enough, so businesses pay for more speed and see no improvement at all. The real problem is usually not speed, it's traffic management, or the lack of it.
Why more speed doesn't fix it
A broadband connection is like a road. A faster connection gives you a wider road, but if there are no lane rules, a delivery van, a dozen cars and a fire engine all merge into the same lane at the same time. On a business network, that fire engine is your VoIP call or video meeting, and it's competing with file downloads, cloud backups, software updates and staff streaming music in the background. All of that traffic looks identical to a standard router: it just sees data packets and sends them in whatever order they arrive.
Voice and video are far more sensitive to delay than most other traffic. A slow file download just takes longer. A slow voice packet arrives late, gets dropped, and causes the choppy, robotic sound or frozen frame that disrupts a call. This is a timing problem, not a bandwidth problem, and buying a bigger pipe doesn't fix a lane discipline issue.
What QoS actually does
Quality of Service, or QoS, is a set of rules configured on your router or firewall that tells your network which traffic matters most and should be sent first. Rather than treating every packet equally, QoS recognises voice and video traffic and gives it priority over things like backups, software updates or general web browsing.
In practice, this means:
- VoIP call traffic is identified and pushed to the front of the queue.
- Video conferencing tools get guaranteed bandwidth even when the network is busy.
- Bulk, non-urgent traffic (large downloads, cloud sync, backups) is allowed to use spare capacity without crowding out calls.
- Limits can be placed on traffic that has no business purpose, such as streaming services or personal downloads during work hours.
Done properly, your team can be mid-call while someone else uploads a large file to the cloud, and nobody notices a thing.
Common causes of choppy calls, beyond QoS
QoS configuration is usually the biggest fix, but it's worth ruling out a few other common culprits that often sit alongside it:
- A consumer-grade router that isn't designed for business voice traffic at all.
- Wi-Fi interference, where calls are made over a weak or congested wireless signal rather than a wired connection.
- An underpowered connection for the number of simultaneous users, where QoS helps but can't create bandwidth that simply isn't there.
- Misconfigured or outdated firmware that doesn't correctly recognise VoIP or video traffic in the first place.
A good diagnosis looks at all of these together, not just one in isolation.
What to ask your IT provider
If calls and meetings are a regular source of frustration, it's worth having a direct conversation with whoever manages your network. Useful questions to ask include:
- Is QoS currently configured on our router or firewall, and if so, for which traffic types?
- Is our VoIP and video conferencing traffic specifically prioritised, or is everything treated equally?
- Do we have enough bandwidth for the number of simultaneous calls and meetings we actually run?
- Are our calls and video meetings running over a wired connection where possible, rather than relying on Wi-Fi?
- Can non-essential traffic, like large backups, be scheduled outside peak hours instead of competing with live calls?
If your provider can't answer these clearly, or hasn't looked at traffic prioritisation at all, that's a gap worth closing before it costs you another client call.
Getting it right for a growing business
As a business adds more staff, more calls and more video meetings to the same connection, the pressure on that connection only grows. QoS isn't a one-off setting either, it needs reviewing as your traffic patterns change, particularly if you add new VoIP phone systems, move more operations to the cloud, or open a new office site.
At Valetech Solutions, we configure and manage connectivity and VoIP phone systems for growing Manchester businesses, including setting up QoS correctly so your calls and meetings stay clear no matter what else is happening on your network. If choppy calls or laggy meetings are a regular occurrence, Get in touch with Valetech Solutions and we'll take a proper look at how your traffic is being managed.