Seven Quiet Leaks in Your Business Phone Bill (And How to Plug Them)
Photo: Francisclarke, CC BY-SA 4.0, via Wikimedia Commons
The cheapest phone bill is not always the one with the lowest headline price. In our experience, it is the one where somebody has actually read the bill.
Most SMEs do not have a telecoms problem. They have a housekeeping problem. A line here, a SIM there, a maintenance contract that survived a system upgrade. None of it looks dramatic. Together, it can be hundreds of pounds a month.
This is not about shouting at your provider. It is about knowing what you are paying for. Here are seven quiet leaks we see again and again.
Why the headline tariff is a distraction
Sales pages love a big number. Ten pounds per user. Free handsets. Unlimited calls. But your bill is made up of lots of small decisions, many of them made years ago by someone who has left the company. The savings usually come from turning things off, not switching to a slightly cheaper version of the same thing.
1. The line nobody uses
There is often a line for a fax machine that was binned in 2019, or a backup line for an office you closed. It keeps appearing on the bill because nobody has asked for it to stop. Ask for a full inventory of active lines and services. Then match it to reality.
2. The mobile SIM in a drawer
Spare SIMs are useful. Forgotten SIMs are not. A SIM can sit in a drawer, still attached to a monthly plan, for years. Check who has a company mobile, who actually needs one, and whether any are on plans with more data than they use. It is not about being petty. It is about paying for what you use.
3. Call divert and forwarding charges
Diverts are brilliant when someone is on holiday. They are less brilliant when a divert has been left on a number for months. Some providers charge per minute for diverts, and the cost hides in the call charges rather than the line rental. Ask for a breakdown of call charges and look for patterns.
4. Out-of-bundle surprises
Premium-rate calls, international calls, 0845 numbers, directory enquiries, conference bridges. One person can create a surprising amount of out-of-bundle spend. You do not need to ban everything. You do need to see it. A monthly call review, or a bar on the numbers you never use, is usually enough.
5. Maintenance cover on kit you have replaced
This is a classic. You upgrade the phone system, but the old maintenance contract keeps running. Or you pay for cover on handsets that are out of warranty and not worth repairing. Check what is covered, what the response time is, and whether the kit is still in use. If it is not, cancel it.
6. The backup line that backs up nothing
Backup lines are good. Backup lines that are not connected to anything useful are just a subscription. If you pay for a second broadband line for resilience, test it. Make sure it actually takes over when the main line drops. If it is sitting idle and untested, you are paying for comfort, not continuity.
7. Licences, extensions and small add-ons
Unused voicemail licences. Extra extensions for meeting rooms nobody books. Call recording on a team that does not need it. A softphone licence for a contractor who left. These small add-ons are easy to miss because they are not the main event. They are also easy to fix.
How to run a 45-minute audit
Grab last month's bill and a highlighter. List every line, SIM, licence and service. Next to each one, write the person or device that uses it. If you cannot name one, mark it for review. Then ask your provider for a breakdown of call charges and contract end dates. You are not trying to become a telecoms expert. You are trying to spot the obvious.
Do this once a year, ideally before renewal. It is much easier to negotiate when you know what you actually need.
What to do with the savings
You do not have to spend them on more telecoms. Put them towards better broadband, a proper backup solution, or simply the bottom line. The point of the audit is not to squeeze every penny. It is to stop paying for things that stopped being useful a long time ago.
The bottom line
Most SMEs are not overpaying because they chose the wrong tariff. They are overpaying because nobody has looked under the bonnet. A short, honest audit is usually worth more than a headline discount. The cheapest bill is the one that only includes what you need.
