What VoIP Equipment for Small Business Do You Need?

Switching to a VoIP phone system doesn't necessarily mean buying a new phone for every employee. Most small businesses can get started with a combination of existing computers, smartphones, headsets, and a few dedicated IP Phones.

The right VoIP equipment depends on how your employees communicate, where they work, and how your business handles incoming calls. You might not need physical phones at all. This guide walks you through what's available, what works best for SMBs, and how to avoid buying equipment you don't need.

What Types of VoIP Equipment Do Small Businesses Use?

VoIP equipment comes in four main groups: IP phones, softphones, headsets, and gateways and ATA devices. Understanding each one helps you decide what your business needs.

• IP phones are dedicated phones that connect directly to your network instead of a telephone line. They look like regular office phones but plug into Ethernet cables or Wi-Fi instead of the wall jack.
  IP phones range from simple desktop models to feature-rich systems with screens, multiple lines, and programmable buttons.
  • The advantage: they work like traditional phones, so your team doesn't need training.
  • The disadvantage: they cost more upfront and take up desk space.
• Softphones are phone systems that run on computers or smartphones. Instead of a separate phone, your team uses a desktop application or mobile app to make and receive calls. Softphones reduce costs significantly because they use hardware you already own. The advantage: flexibility and lower hardware costs.
  • The disadvantage: they depend on your computer's microphone and speakers, which can be lower quality than a dedicated phone.
• Headsets let your team talk through their computer or phone without holding the device to their ear. For small businesses with lots of phone calls, a quality headset makes an enormous difference in comfort and productivity. Wired headsets cost less and offer the most stable connection. Wireless headsets cost more but give your team freedom to move around the office.
• Gateways and ATA devices convert traditional phone lines to VoIP signals, letting you use existing phones and fax machines with your new VoIP system. These are useful if you have legacy equipment you want to keep or a system that isn't fully migrated yet.
• Network equipment can ensure a steady connection, since your VoIP equipment is only as good as the network it runs on. Most small businesses with decent internet can handle VoIP, but you need to check three things: bandwidth, stability, and network infrastructure.

Do You Need an IP Phone for Every Employee?

You don't need an IP phone for every employee to use a VoIP system. Many small businesses combine dedicated desk phones with soft phone applications on existing computers and smartphones. The right setup depends on your team's work style.

• You need IP phones if: Your team works in a fixed office location, they're on phone calls most of the day, or your business depends on professional phone handling (sales, customer service, reception). IP phones have consistent audio quality and don't depend on computer performance. They're also easier for non-technical staff to use.
• You don't need IP phones if: Your team works remotely, they primarily use email and messaging, or they only take occasional phone calls. Softphones on their laptops or smartphones handle these situations just fine. You'll spend far less on equipment and avoid the complexity of provisioning and managing phones.
• You can do both: Many small businesses use a hybrid approach. The reception area and sales team get IP phones because they're on calls all day. The accounting department and back office use softphones because they spend most of their time on other tasks. This gives you the best of both worlds: professional phone handling where it matters and cost savings where it doesn't.

VoIP Equipment Recommendation by Business Type

IP Phone Options for Small Business

If you decide you need IP phones, you have choices at different price and feature levels.

• Basic IP phones ($80–$150 per phone) handle calls, transfers, and voicemail. They work perfectly for most small businesses and don't have features you'll never use. A basic IP phone has a display, physical buttons, and speaker, and that's all you need. These are the workhorses of small business phone systems.
• Feature-rich IP phones ($200–$400 per phone) add multiple lines, programmable buttons, screens that display caller information, and integration with your business apps. These are useful if your team manages multiple extensions or departments. Most small businesses don't need them.
• Video phones ($500+) add video calling capability. Unless your business specifically needs video conferencing on office phones, you don't need these. Video calls on softphones work better anyway.
• Best practice for small business: Buy basic IP phones. They do everything you need, cost less, and take up less desk space than feature-rich models.

What About Softphones? When Should You Use Them?

Softphones are a powerful option for small businesses, especially those with remote or hybrid teams.

• Desktop softphones run on Windows or Mac computers and turn your laptop into a phone. Your team makes and receives calls using a small window on their screen. This works surprisingly well if your team is already working at their desks. Many VoIP providers include softphones for free with their service.
• Mobile softphones run on iPhones and Android phones, letting your team take the office phone system in their pocket. This works great for field teams, remote employees, or anyone who's not always at their desk. The only catch: they use your cellular data or Wi-Fi, so they depend on connectivity.
• Audio quality with softphones depends on your computer's microphone and speakers or your phone's headset. For occasional calls, built-in audio is fine. For all-day phone work, invest in a quality headset. A good USB headset ($80–$150) makes a huge difference in call quality and comfort.

IP Phones vs. Softphones: What's the Difference?

Headsets: Why a Good One Matters

If your team takes phone calls, a quality headset is one of the best investments you can make.

• Wired USB headsets ($40–$150) connect to your computer with a cable and offer the most reliable connection. They're comfortable for all-day wear and work with both softphones and IP phones. There's almost no latency, so calls sound natural.
• Wireless headsets ($80–$300) connect via Bluetooth or DECT and give your team freedom to move around the office or walk between meetings. The tradeoff: they require charging and occasional pairing issues. For teams that stay mostly at their desks, wired headsets are simpler. For teams that move around, wireless is worth the extra investment.
• Speaker quality matters more than you think. Cheap headsets make calls sound like you're in a tunnel. Good headsets have noise cancellation, so your team can focus on the call instead of office noise. If your staff takes calls all day, spend $100 to $150 on a quality headset. Your employees' ears and your customer satisfaction will thank you.

What Network Requirements Does a VoIP System Have?

Most small businesses with decent internet can handle VoIP, but you need to check three things: bandwidth, stability, and network infrastructure.

Bandwidth is the main requirement. Each VoIP call uses about 100 kilobits per second (Kbps) in each direction. If you have a 25 megabit internet connection, that’s 25,000 Kbps, which handles 250 simultaneous calls comfortably. For most small businesses with 10 employees, even if everyone called at once, you’d use only 1 megabit. Most internet plans are fast enough.

Stability matters more than speed. A slow, stable connection works better for VoIP than a fast, unstable one. If your internet drops frequently or has high latency (the delay between when you speak and when the other person hears you), phone calls will sound choppy or drop entirely. Test your internet reliability before switching to VoIP. If you have frequent outages or inconsistent speeds, contact your internet provider or consider upgrading.

Network infrastructure is where most small businesses hit issues. If you’re using IP phones, you need network ports available. Every IP phone needs an Ethernet cable or strong Wi-Fi signal. If your office was built before VoIP became common, you might not have enough network ports at every desk. A managed IT provider can audit your network and tell you if upgrades are needed. Usually it’s just adding network switches or running more cables, a one-time cost of $500 to $2,000.

The simple rule: If you can stream video on multiple computers at once without buffering, your network is ready for VoIP. If video streaming is choppy, VoIP will be too.

How Much Does VoIP Equipment Cost?

Here's the real equipment cost for a 10-person small business using a hybrid setup using 3CX .

Your equipment costs depend on how many desk phones you actually need. The good news: you can avoid buying them entirely and use softphones instead. Here’s the realistic breakdown for a 10-person small business.

Desk phone hardware (one-time cost):

If you’re using Yealink phones (compatible with 3CX), budget $130 to $180 per phone depending on the model:

• Yealink T54W ($130): General office staff and managers; 4.3-inch screen, 10 line keys
• Yealink T57W ($180): Reception, managers, or heavier phone use; 7-inch touchscreen

For typical small business deployments:

• 5 desk phones: $650 to $900
• 10 desk phones: $1,300 to $1,800
• 20 desk phones: $2,600 to $3,600

Other one-time equipment costs (depends on your setup):

• Headsets: $80 to $150 per person (if needed)
• Network cabling and PoE equipment: $300 to $1,000 (depends on existing infrastructure)
• Installation and provisioning: Quoted separately by your 3CX partner

Recurring costs (separate from hardware):

• 3CX software licence: Annual charge based on edition and simultaneous-call capacity
• SIP-trunk provider (carrier): Monthly charges for phone numbers and external calls
• Hosting (if using 3CX cloud): Monthly hosting fee, or on-premises if you manage your own server
• Support and maintenance: Quoted separately by your installer

Important licensing note: 3CX’s free Basic tier supports only apps and softphones—no IP phone support. If you want desk phones, you need their Professional tier ($600–$1,200 annually). Check your provider’s tier carefully before buying equipment; a free license may not support the phones you’re planning to purchase.

Compare this to traditional business phone systems, which cost $50 to $100 per line per month plus installation which commonly costs $150–$250 per line according to ExpertMarket.

Getting Your VoIP Equipment Set Up Right

1. Don't buy equipment before signing up for VoIP service. Different providers support different phones and may have recommendations for what works best with their system. Some providers include hardphones for free or at a discount as part of their service package. Others support a wider range of devices. Check with your provider first.
2. Plan for network infrastructure. If you're using IP phones, you need network capacity. IP phones need network ports or Wi-Fi. If your office doesn't have enough network bandwidth, phone calls will suffer. A managed IT provider can assess whether your network is ready.
3. Consider a mixed approach for most small businesses. Use IP phones where you need professional phone handling and softphones elsewhere. This balances cost, quality, and usability.
4. Test before you buy in bulk. Buy one or two pieces of equipment first. Test them with your VoIP service for a week. Make sure they work the way you expect. Then scale up.

Common VoIP Equipment Mistakes to Avoid

1. Buying phones before choosing a provider. Different providers recommend different equipment. Wait until you've selected a provider.
2. Buying too many IP phones. Most small businesses don't need an IP phone for every employee. You'll waste money on equipment that sits unused.
3. Ignoring network requirements. IP phones need network bandwidth. If your network isn't ready, phone calls will drop and audio will break up.
4. Buying cheap headsets for all-day phone staff. If someone takes phone calls for 8 hours a day, a $30 headset will be uncomfortable and sound bad. Invest in quality.
5. Overspending on features you won't use. Video phones, feature-rich displays, programmable buttons: most small businesses don't need these. Buy basic phones that handle calls reliably.

VoIP Equipment Checklist for Small Business

Decide your team structure:

How many employees work in office vs. remote?

Who takes most of the phone calls?

Do you need to keep fax machines?

Choose your hardware mix:

IP phones for reception and high-volume call staff

Softphones for office and remote employees

Quality headsets for anyone taking phone calls regularly

Optional: VoIP gateway if keeping fax capability

Plan your network:

Do you have enough network ports?

Is your Wi-Fi strong enough for phones?

Can your internet bandwidth handle phone calls?

Test before scaling:

Get one test phone

Get one test headset

Use them for a week

Then order equipment for the whole team

Budget allocation:

IP phones (if needed): $100-150 per person

Headsets: $80-150 per person

Network upgrades: TBD based on assessment

VoIP service: $20-50 per person per month

FAQ

Q: Can I use my old phone with VoIP?

A: Not directly. You'd need to use an ATA device to convert an old phone to work with VoIP, but it's usually cheaper to buy a basic IP phone or use a softphone instead.

Q: What is the minimum equipment needed to use VoIP?

A: Technically, you only need an internet connection and a computer or smartphone. You can use a softphone app on devices you already own at no additional cost.

Q: Do all VoIP providers support the same phones?

A: Not necessarily, some providers recommend specific phones for best compatibility. Check with your provider about what they support before buying.

Q: What's the difference between a phone and a softphone?

A: An IP phone is hardware that sits on your desk like a traditional phone, a softphone is software that runs on your computer or smartphone. IP phones are more professional and don't depend on your computer's performance. Softphones are cheaper and more flexible for remote teams.

Q: Do I need a special internet connection for VoIP phones?

A: VoIP calls use about 100 kilobits per second in each direction. If you have a 25 megabit internet connection and 10 employees making calls, you should have enough bandwidth. Although bandwidth alone doesn't determine VoIP quality, if your internet is slow or unreliable, phone calls will suffer.

Q: Can I mix IP phones and softphones?

A: Yes. Most VoIP systems let you use both. This is smart for small businesses: IP phones where you need them, softphones where they work fine.

Q: What headset should I buy?

A: For most small businesses, a quality USB wired headset around $100 is the sweet spot. It's comfortable, has good sound quality, and connects reliably to your computer. If your team moves around the office, a wireless headset at $150 to $200 is worth the investment.

Q: How long do VoIP phones last?

A: Five to seven years with proper care. They're durable hardware. After that, they may stop receiving software updates or support, but they'll keep working until you replace them.

Q: Can I use my existing business phone number with VoIP?

A: Yes. The process is called number porting, and most VoIP providers handle it as part of switching.