5 VoIP Scalability Pitfalls You Don't See Coming

If you've hit scalability pitfalls with your phone system, you probably didn't pick the right VoIP partner. The warning signs are easy to spot once you know what to look for.

Ever wonder why sidewalks are poured in segments? What's the point of those funky strips of wood between the sections? All they seem to do is give weeds a place to grow. The real purpose is expansion and contraction.

Your business is like a sidewalk. You have to plan for times when you'll need more resources, and be ready to pull back when it's time. That's scalability. The tools you rely on have to respond to the ups and downs of business cycles.

These five "wish I had thought of that" factors belong on the checklist for any cloud phone system you consider.

1. The whole shebang: only pay for what you need

With a good VoIP platform you shouldn't have to worry about the "not enough" problem. Your vendor shouldn't push you to buy more equipment than you currently need. If you need to scale up for seasonal reasons or a spike in business, the upgrade is often just a software change and more bandwidth. Likewise, scaling down simply means software adjustments and a smaller monthly bandwidth plan. Because VoIP often costs around 30 percent less than legacy phone service, that flexibility usually saves money on the way up and on the way down.

Not everything is this easy.

2. Chop-chop: fixing choppy call quality

You're walking through the call center and hearing a lot of apologies. "Sorry, could you repeat that?" echoes through the room. The VoIP system has what's commonly called choppiness.

It's usually caused by packet loss tied to high latency. Latency is easy to picture: it's the time it takes a packet of information, here digitized voice, to travel from the source to you, or the other way around. If packets travel at different speeds, they don't arrive in order. The call gets reassembled with parts missing, and you and the caller hear only what gets through.

This should only happen if your VoIP infrastructure is overtaxed. Make sure your vendor can configure your router and firewall to prioritize voice data. Ask what it takes to isolate video and other high-bandwidth traffic so it isn't fighting with your call center's voice needs. Can they do that for you?

Your vendor will likely fix this by upgrading the router. It can also be managed through software that uses multi-protocol label switching to balance data and bandwidth. This is one reason the underlying network matters so much, and why we run on a 99.999 percent uptime network built to keep voice traffic clean.

3. Time to delegate: give voice traffic its own lane

VoIP systems are supposed to save you money, and they do. The first savings often come from being able to use your existing phones. You can also frequently start out on your existing network. But then voice and everyday computer activity share the same infrastructure.

At first, everybody plays nice. Then call quality can start to suffer, because digital voice needs dedicated bandwidth.

If you plan to grow, make sure your vendor inspects your internal network and is ready to reconfigure or expand it so voice traffic always gets priority. Be ready to upgrade to a business-class router to keep call quality up. The next step is a dedicated network connection just for VoIP.

4. Your ISP is just not that into you

Of course your current Internet Service Provider will say "of course." Yes, they're "more than capable of handling all your bandwidth needs." They have "state of the art hardware and excess capacity," plus a few more benefit statements printed on the shiny brochure.

You, however, aren't their only customer.

Many ISPs are already strained, or soon will be, by growing demand for bandwidth. And like you, they're always chasing more customers. Most weren't built for the heavy, steady load of voice data, and some struggle to keep up. They won't volunteer that.

Ask your VoIP vendor to be honest about your current ISP. Will it deliver the reliable, consistent bandwidth you need for VoIP? Strong providers often solve this by taking on the responsibility themselves, so more of the path is under their control.

That's often preferable. Most of your VoIP platform is cloud-based, and a connection your vendor controls, from your phones to their system in the cloud, means fewer pieces outside their control. They can scale resources up or down as you need them, and many have constant monitoring in place so it happens without any effort on your part.

5. Planning for what you don't know yet

It's easy to ask a VoIP vendor for a proposal based on your current needs. It's even fairly easy to ask them to project a handful of growth scenarios. It's not so easy to ask a vendor to look into a crystal ball and say what the breakneck pace of technological change will drop on your doorstep.

How, for example, will the Internet of Things (IoT) affect your VoIP scalability? If smart refrigerators and thermostats haven't impressed you yet, look at what's just over the horizon. Unified Communications (UC) is the one ring to rule them all, and the convergence of VoIP and UC keeps accelerating as collaborative apps push messaging and chat toward usage levels that rival email.

AI is a newer wave in the same picture. An AI Voice Agent can answer calls, transcribe conversations, and route callers using data from your connected CRM, all on the same cloud platform you already use for voice. Most growing businesses didn't plan for that a few years ago, which is why future-readiness belongs on your scalability checklist.

Connected-system features work through your existing CRM or business system and depend on that system offering a compatible API. Availability varies by provider.

How do you plan for things like that? You can't, exactly. But you can choose a VoIP vendor that's looking out for your future and has already laid the groundwork to fold these capabilities into your current system.

Scalability is a vendor decision

You can't predict the future, but you can prepare for it. The top benefit of a cloud VoIP platform is that it scales, and it responds quickly to changing needs. Pick the right vendor and most of these scalability struggles go away. To go deeper on choosing well, see our guide to questions to ask potential VoIP providers and how a scalable VoIP phone system gets you away from your desk.

To see a platform built to scale, look through the CallSprout platform or book a demo.