Your phone bill keeps creeping up, the old desk phones are held together with tape, and the copper line contract renews next quarter. This is usually the moment a business owner asks us about VoIP. The short version: VoIP means your phone calls travel over your internet connection instead of a dedicated phone line, and for most small businesses it costs less and does more. But the switch touches your network, your numbers, and how your team actually answers calls, so it pays to know what changes before you sign anything.
Desk phones vs softphones
With VoIP you have two ways to take a call. A desk phone is a physical handset, usually from Yealink, Poly, or Grandstream, that plugs into your network with an Ethernet cable. It looks and feels like the phone your team already knows. A softphone is an app on a computer or cell phone that does the same job with a headset.
Most of our clients end up with a mix. Front desk and anyone who lives on the phone all day gets a real handset, because picking up a receiver is faster than clicking around in an app. Everyone else uses the mobile app, which also means the office number rings on their phone when they are out of the building. Desk phones run roughly $60 to $200 each depending on features, and some providers throw them in or rent them per month.
Call flows and auto-attendants
This is where VoIP earns its keep. On an old phone line, a call rings a phone and that is the whole story. A VoIP system lets you build a call flow: the recorded greeting ("press 1 for sales, press 2 for service"), ring groups that ring three people at once, business-hours rules that send after-hours calls to voicemail or an answering service, and voicemail that lands in your email inbox as an audio file with a transcript.
The auto-attendant is the part owners underestimate. Sit down before the install and sketch what should happen when someone calls: who rings first, for how long, what happens if nobody picks up, and what callers hear on a holiday. A 30-minute planning session here saves months of "why did that call go to Dave's voicemail" later.
Number porting: your number moves with you
You keep your existing phone numbers. The process is called porting, and it is regulated, so your old carrier cannot legally hold your number hostage. It does require paperwork: a recent bill, the exact billing name and address on the account, and a signed letter of authorization. Get one character of the address wrong and the port gets rejected and you start over.
Ports typically take one to four weeks. The critical rule: do not cancel your old phone service until the port completes. Cancel early and the number can be released and lost. A good installer schedules the cutover so the number moves during a slow hour and calls never stop ringing.
QoS: why call quality depends on your network
The most common VoIP complaint is choppy audio, and it is almost never the phone provider's fault. Voice traffic is tiny, under 100 kbps per call, but it is impatient. If someone starts a big file upload and your router treats the phone call and the upload equally, the call stutters.
The fix is QoS, quality of service, a router setting that tells your network to let voice traffic cut in line. Any decent business router supports it. If your office runs on the free router your ISP handed you, budget for a proper one as part of the phone project. Also check your internet itself: VoIP needs stable upload speed and low jitter more than raw bandwidth. A cheap connection that drops for two seconds every hour will make a great phone system sound terrible.
What it actually costs
Rough numbers, because plans vary and promo pricing is everywhere:
- Per seat, per month: most business VoIP providers land somewhere between $15 and $35 per user. The low end covers calling and voicemail; the high end adds video meetings, texting from your business number, and call analytics.
- Hardware: $60 to $200 per desk phone, one time, if you want handsets. Zero if everyone uses softphones with a decent headset.
- Setup: some providers include it, some charge a few hundred dollars. If your network needs QoS work or new cabling, that is a separate line item.
Compare that against what you pay now for phone lines, long distance, and the maintenance contract on an aging on-site phone box. For a five-person office, the math usually favors VoIP within the first year.
How to know it was done right
After the cutover, test like a customer. Call your main number from a cell phone and make sure the greeting, the menu, and every option go where they should. Call after hours and confirm the after-hours behavior. Leave a voicemail and check that it arrives by email. Put a call on hold, transfer it, and make a call while someone else uploads a big file to see if QoS is doing its job. Finally, confirm your old carrier account is closed and you are not still paying for lines you no longer use. We see that last one more often than you would think.
Stuck on this, or want it done for you? That's the job.
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