73% of business calls that go to voicemail never get returned.
That’s not a VoIP statistic — that’s a revenue statistic. Every unanswered call is a potential customer who moved on. Call forwarding exists to make sure that doesn’t happen — by redirecting calls to wherever you actually are, instead of wherever your desk phone sits.
What is call forwarding? At its simplest: when someone calls number A, the call automatically goes to number B instead. Your office phone rings your cell. Your main line rings your home office. Your after-hours calls go to an answering service. The caller doesn’t know — and doesn’t care — where the call lands. They just hear it ring and someone picks up.
But “simple” is only the starting point. There are five types of call forwarding, and most businesses use the wrong one.
The Five Types of Call Forwarding
Unconditional Forwarding (Always Forward)
Every call gets forwarded, no exceptions. Your desk phone never rings — calls go straight to the destination.
When to use it: You’re working remotely all week. You’re traveling. Your office is closed for renovation. You want all calls on your cell, period.
The catch: If the forwarded-to number is busy or unreachable, the caller gets nothing. No voicemail, no fallback. Set up a backup.
Busy Forwarding (Forward When Busy)
Calls only forward when your line is occupied. If you’re on a call, the next incoming call goes to your cell or a colleague instead of getting a busy signal.
When to use it: Solo operators who can only handle one call at a time. Small teams where backup coverage matters.
No-Answer Forwarding (Forward When Unanswered)
If you don’t pick up after a set number of rings (usually 15-25 seconds), the call forwards. This is the most common type for businesses.
When to use it: Almost always. It’s the sensible default — try the primary number first, forward if nobody answers. Most business phone systems use this as the backbone of their routing.
Selective Forwarding (Forward Based on Rules)
Calls from specific numbers, at specific times, or matching specific criteria get forwarded. Everything else rings normally.
When to use it: VIP customers get routed directly to a senior rep. After-hours calls go to an answering service. Calls from a specific area code go to your regional office. This is where forwarding starts becoming routing.
Sequential Forwarding (Hunt Groups)
Try number one first. If no answer after 4 rings, try number two. Then number three. Then voicemail. The call “hunts” through a list until someone picks up.
When to use it: Small sales teams. Support desks without formal queues. Any situation where multiple people can take the call and you want to maximize the chance someone answers.
How to Set Up Call Forwarding
Setup depends on your phone type:
On a cell phone:
- iPhone: Settings → Phone → Call Forwarding → toggle on → enter destination number
- Android: Phone app → Settings (three dots) → Call Forwarding → select type → enter number
On a landline:
- Dial *72 followed by the forwarding number (most US carriers)
- To deactivate: dial *73
On a VoIP system like VestaCall:
- Log into admin dashboard → select the number → choose forwarding rules → enter destination → save
- Setup time: about 2 minutes. No IT required.
The VoIP advantage is configurability. Landlines and cell phones give you simple forwarding — on or off. VoIP systems let you build rules: forward to cell between 6pm-8am, forward to a colleague on weekends, forward international callers to a specific team, play a custom greeting before forwarding.
VestaCall’s median setup time is 12 minutes from account creation to first call — based on data from 10,000+ accounts. That includes forwarding configuration, auto-attendant setup, and team routing. Not just the forwarding rule.
Call Forwarding vs Call Routing
People use these terms interchangeably. They’re not the same thing.
Call forwarding is a redirect. Number A → Number B. One rule, one destination.
Call routing is intelligent distribution. Incoming calls go to the best available person based on multiple factors:
- Time of day — business hours calls go to the office, after-hours to mobile or answering service
- Caller identity — VIP customers skip the queue and reach a senior rep
- Agent skills — billing questions go to billing, tech issues go to tech support
- Availability — only ring agents who are logged in and not on another call
- AI intent detection — the system listens to the first few seconds and routes based on what the caller needs
Call forwarding is a mail redirect. Call routing is a sorting machine.
Small businesses with 1-3 people? Forwarding is fine. Growing teams with 5+ people handling different types of calls? You need routing. VestaCall’s AI-powered IVR does both — simple forwarding rules for basic needs, intelligent routing for complex ones. The IVR achieves a 67% self-service containment rate, meaning two-thirds of routine calls get resolved without reaching a human — compared to the industry average of 41%.
What Call Forwarding Costs
The cost varies dramatically by technology:
Traditional landline forwarding: $2-5/month add-on from your carrier. Per-minute charges may apply for forwarded calls, especially long-distance.
Cell phone forwarding: Usually free for domestic forwarding. International forwarding can be expensive — $0.25-$2.00/minute depending on the country. Check your carrier.
VoIP forwarding: Included free in virtually every VoIP plan. VestaCall includes forwarding, routing, auto-attendant, and AI features starting at $19/user/month. No per-minute charges for domestic forwarded calls. International rates apply at VoIP rates (typically $0.01-0.10/min — dramatically cheaper than cell carrier rates).
The real cost of call forwarding isn’t the feature fee. It’s the cost of NOT having it properly configured. If 73% of voicemails don’t get returned, every missed call that should have been forwarded is a lost opportunity.
When Basic Forwarding Isn’t Enough
You’ve outgrown basic call forwarding when:
Calls are going to the wrong person. You have a sales team and a support team. Forwarding sends every call to the same phone. Routing sends sales calls to sales and support calls to support. That distinction matters when you’re handling 50+ calls a day.
You need to know who’s calling before you answer. Basic forwarding just rings the phone. VoIP routing with CRM integration shows you the caller’s name, company, purchase history, and last interaction — before you pick up. VestaCall customers using intelligent routing see an 18% improvement in first-call resolution — based on data from 800+ contact centers.
You need analytics. Forwarding tells you nothing about call patterns. How many calls are you missing? What’s your average response time? Which team member handles the most calls? VoIP routing tracks everything.
You need compliance. Forwarded calls over your cell phone aren’t recorded. If you’re in healthcare, legal, insurance, or financial services, that’s a compliance gap. VoIP systems record calls automatically.
You need after-hours intelligence. Basic forwarding can send calls to voicemail at 5pm. An AI-powered auto-attendant can answer those calls, understand what the caller needs, handle routine requests automatically, and route urgent issues to an on-call person — all without human intervention.
Smart Forwarding on VestaCall
VestaCall goes beyond basic forwarding with three levels of call handling:
Level 1 — Simple Forwarding: One number forwards to another. Takes 30 seconds to configure. Use it for personal call routing or single-number businesses.
Level 2 — Ring Groups & Auto-Attendant: Calls hit a greeting (“Press 1 for sales, 2 for support”), then route to a group of agents who ring simultaneously or sequentially. Takes 10-15 minutes to set up. Covers most small business needs.
Level 3 — AI-Powered Routing: The system analyzes caller intent, checks CRM data, evaluates agent skills and availability, and routes to the optimal person. No menu pressing required — the caller just speaks naturally. Setup time varies, but the routing engine improves automatically as it learns your call patterns.
All three levels work together. You might use simple forwarding for your personal extension, ring groups for your sales team, and AI routing for your main support line. Same platform, same dashboard.
For teams still using landlines, our VoIP vs landline breakdown explains what changes — and what doesn’t — when you make the switch. And if you’re evaluating providers, the best VoIP for small business guide covers the full landscape.
Start a 14-day free trial — set up forwarding in under 2 minutes, test the AI routing, and see if your calls still end up in voicemail.
They won’t.
