Call Forwarding for Small Business: How to Never Miss Another Important Call

The Forwarding Problem Nobody Talks About

Mark runs an electrical business in Leeds. Three employees, strong reputation, steady work. He set up call forwarding years ago — when he can't answer, calls divert to his office manager, Claire. Problem solved. Except last Tuesday, a property management company called about rewiring six flats. Claire was on her lunch break. The call forwarded to her phone, rang out, and went to voicemail. No message was left. The property company called the next electrician on their list. That was an £18,000 contract, gone — not because nobody set up call forwarding, but because call forwarding only moves the ring to another phone that still needs a human to pick it up.

This is the fundamental flaw with basic call forwarding that most small businesses don't discover until it costs them. You set it up, feel clever about it, and assume your phone problem is solved. It isn't. You've just moved the problem from one phone to another.

62%

of small business calls go unanswered

↗ 411 Locals

80%

of callers sent to voicemail hang up without leaving a message

↗ Forbes / DestinationCRM

85%

of people whose calls go unanswered never call back

↗ Phone2.io

78%

of customers buy from the first business that responds

↗ Lead Connect

Those numbers paint a clear picture. Most callers who reach voicemail won't leave a message. Most callers who don't get through won't try again. And the vast majority will buy from whoever answers first. Call forwarding is a necessary starting point — but if the destination doesn't answer either, you're in exactly the same position as if you'd never set it up.

What Call Forwarding Actually Is (And Isn't)

Call forwarding is a telephony feature that redirects incoming calls from one number to another. Every mobile phone, every landline, and every business phone system supports it in some form. It's been around for decades, and for good reason — it genuinely helps when you can't answer your phone.

The trouble is that most small business owners treat call forwarding as a complete solution when it's really just a routing instruction. It moves the call. It doesn't answer the call. It doesn't capture the caller's details. It doesn't qualify urgency. It doesn't tell the caller you'll ring back within the hour. It just makes another phone ring — and if nobody picks up that phone either, the caller gets the same silence they would have got without forwarding.

Unconditional forwarding redirects every call immediately, regardless of whether your phone is on or available. Useful when you're completely unavailable, but risky day-to-day because you never get a chance to answer calls yourself.

Forwarding when busy activates only when you're already on another call. The second caller gets routed to your forwarding destination instead of hearing a busy tone.

Forwarding when unanswered kicks in after a set number of rings if you don't pick up. The most practical option for most businesses — it gives you a chance to answer, then passes the call along if you can't.

Forwarding when unreachable activates when your phone is off, out of battery, or has no signal. Essential if you work in basements, rural areas, or anywhere with patchy reception.

How to Set Up Call Forwarding on Your Phone

If you haven't set up any forwarding at all, start here. These are the basic steps for iPhone, Android, and BT landlines.

iPhone

Open Settings

Go to Settings > Phone > Call Forwarding.

Toggle Call Forwarding on

Flip the switch to enable forwarding. Your phone may take a few seconds to confirm with your network.

Enter your destination number

Type the number you want calls forwarded to — a colleague, a partner, or your virtual phone number.

Verify it's active

You'll see a phone icon in the status bar when forwarding is enabled. Test it by calling from another phone.

Android

Open the Phone app

Tap the three-dot menu icon, then select Settings.

Navigate to Call Forwarding

Go to Calls > Call Forwarding. The exact path varies by manufacturer.

Choose your forwarding type

Select Always Forward, Forward When Busy, Forward When Unanswered, or Forward When Unreachable.

Enter the destination number and save

Enter the number, tap Enable or Turn On, and test with a call from another phone.

BT Landline

Forward all calls

Pick up the handset and dial *21*[destination number]# — you'll hear a confirmation tone.

Forward when busy

Dial *67*[destination number]# to redirect calls that come in while you're already on the line.

Cancel all forwarding

Dial #21# to deactivate. Dial *#21# to check your current forwarding status.

→

Use conditional forwarding, not unconditional

For business use, "forward when unanswered" is almost always better than "always forward." Unconditional forwarding means you never ring at all — you lose the chance to answer calls yourself during quieter moments. Conditional forwarding gives you first crack at the call, then passes it along if you don't pick up within a few rings.

Why Even Well-Configured Forwarding Fails for Businesses

You've set up forwarding. Calls go to your colleague when you can't answer. Sorted? Not quite.

The forwarding destination is still a human being with their own job, their own lunch break, their own moments of being unreachable. When Claire is in a meeting, on another call, or driving — Mark's forwarded calls hit silence just like they would on his own phone. You haven't solved the missed call problem. You've added one extra person who might pick up. The odds are better, but they're not certain.

And there's a subtler problem. When a forwarded call is answered by a colleague, the caller gets a generic "hello?" — no professional greeting, no understanding of what they need, no qualification of urgency. Compare that to what happens when a virtual phone system picks up:

"Good morning, thanks for calling Wilson Electrical. How can I help you today?"
"Hi — I manage a block of flats and we need a full rewire on six units. Is that something you do?"
"Absolutely, that's the kind of project we handle regularly. Let me take some details so Mark can call you back with availability. How many units are in the block, and is there a deadline you're working to?"
"Six flats, and we need it completed before new tenants move in — end of March."
"Understood. And the best number to reach you on?"
"07700 900456. My name's Rachel, I'm with Northgate Property Management."
"Thanks Rachel. I'll make sure Mark gets your details this afternoon. Is there anything else I can help with?"

Rachel doesn't know — or care — that she's spoken to an automated system. She's been asked relevant questions, her details have been captured, and she's been told Mark will call back. She isn't calling the next electrician. She's waiting for Mark. That's the difference between forwarding a call and answering a call.

The Financial Reality of Missed Calls

The maths on missed calls is uncomfortable once you actually run the numbers. Take a typical trades or professional services business that misses four calls a week. Not every missed call is a job. But some are.

calls missed per month (4 per week, conservative)

£2,000

average job value for trades and professional services

£8,000+

potential revenue lost monthly (assuming 1 in 4 missed calls is a real job)

£40–50

monthly cost of a virtual phone number system

Even at the conservative end — one captured job per month that would otherwise have gone to a competitor — the return is significant. A virtual phone number needs to save you one job every few months to pay for itself for the entire year. Most businesses capture far more than that.

“I had call forwarding set up to my wife's phone for years. She'd answer when she could, miss calls when she was busy with the kids, and I'd get a name and number on a text at the end of the day. Half the time I'd call back and they'd already booked someone else. Switched to a virtual number six months ago and it's night and day. Every call gets answered, I get proper details, and I've picked up two commercial contracts I know I'd have lost before.”
Electrical contractor, West Yorkshire, small business forum

⚠

85% of unanswered callers never try again

When a potential customer calls and doesn't get through, the overwhelming majority will not call back. They'll call your competitor instead. You won't see a missed call notification because most don't leave voicemails. You won't know you lost the job. The call simply disappears — along with the revenue it represented. Call forwarding only helps if the destination actually answers.

Basic Call Forwarding vs Virtual Phone Number

Feature	Basic Call Forwarding	Virtual Phone Number
Answers the call	No — just makes another phone ring	Yes — professional greeting, every time
Captures caller details	Only if the person who answers writes them down	Automatically: name, number, reason for call
Works 24/7	Only if someone is awake to answer	Yes — evenings, weekends, bank holidays
Qualifies urgency	No	Yes — routes emergencies, captures the rest
Professional greeting	No — destination answers with "hello?"	Yes — customised to your business
Handles multiple calls	No — one at a time	Yes — unlimited simultaneous calls
Monthly cost	Free to £10	£40–50
Missed call rate	Lower than nothing, but still significant	Zero — every call is answered

💡

What 'answering every call' actually means

It doesn't mean you personally answer every call. It means every caller gets a professional response — a greeting, a conversation, a captured enquiry, and a promise that you'll call back. No one hears a ringtone that goes to voicemail. No one hangs up and calls your competitor because there was nobody on the other end. You still call people back on your own schedule. But nobody falls through the cracks.

Frequently Asked Questions

"Does call forwarding cost anything?"

Setting up forwarding on your mobile is free, but forwarded calls count as outgoing calls from your phone to the destination number — so you may use your plan minutes or incur charges, especially forwarding to a different network. BT landline diverts are charged at your standard call rate to the destination. Virtual phone number services run £40–50 per month and include all answering and routing functionality.

"Can I forward my landline to a mobile?"

Yes. On BT, dial *21*[mobile number]# from your handset. Other providers use similar codes or have online portals. The call will be charged at your landline's call rate. The same limitation applies though — if you don't answer the mobile, the caller still gets silence.

"What's the difference between call forwarding and a virtual phone number?"

Call forwarding redirects your calls to another phone. A virtual phone number answers your calls with a professional system, captures the caller's details, qualifies urgency, and routes intelligently — forwarding urgent calls to your mobile and capturing everything else for callback. Forwarding moves the ring. A virtual number removes the need for anyone to be available at all.

"Can I forward to different numbers at different times of day?"

Not with basic mobile or landline forwarding — you get one destination and have to change it manually. Virtual phone numbers support time-based routing as standard: different rules for business hours, evenings, weekends, and bank holidays. You configure it once and it runs automatically.

"Will callers know their call is being forwarded?"

With basic forwarding, callers may notice the call taking an extra ring or two as it routes. They won't see the forwarding number. With a virtual phone system, the experience is seamless: the caller hears your professional greeting immediately. To them, it sounds like a well-staffed business that always answers.

Need help setting up call forwarding for your business? Our support team can help you configure the perfect setup for your industry and needs.