Setting Up Call Forwarding for Your Business: A Complete Step-by-Step Guide

· Guide · 7 min read

Call forwarding is one of the simplest and most powerful tools a small business can use to stop missing calls. Yet most business owners either do not use it or have it set up incorrectly. The result is the same: calls go to voicemail, and potential customers call your competitor.

This guide walks you through everything you need to know about business call forwarding — what it is, the different types, how to set it up on any phone system, and how to use it strategically to make sure every call reaches a live person.

What Is Call Forwarding and Why Does It Matter?

Call forwarding automatically redirects incoming calls from one phone number to another. Instead of ringing your desk phone and going to voicemail when you are not there, the call routes to your cell phone, a colleague's phone, or a professional answering service.

For small businesses, this matters because:

Call forwarding ensures that whenever your main business line rings, someone — or something — answers.

Types of Call Forwarding

There are several types of call forwarding, and understanding the differences helps you choose the right setup for your business.

Unconditional Call Forwarding (Forward All Calls)

Every call to your business number is immediately forwarded to another number, no matter what. Your original phone never rings. This is useful when you want all calls handled by a specific person or service — for example, forwarding everything to an AI receptionist or virtual receptionist.

Best for: Businesses that want every single call answered by a dedicated service or person.

Conditional Call Forwarding

Calls are only forwarded when specific conditions are met. The three most common types are:

Best for: Businesses that want to try answering calls themselves first but need a safety net for missed calls.

Selective Call Forwarding

Calls are forwarded based on rules you define — such as time of day, caller ID, or day of week. For example, you might forward calls to your cell phone during business hours and to an AI receptionist after 6 PM and on weekends.

Best for: Businesses that want different call handling at different times.

Simultaneous Ring

Instead of forwarding sequentially, multiple phones ring at the same time. The first person to pick up takes the call. This is available through most VoIP and cloud phone systems.

Best for: Teams where multiple people can answer calls, and speed of response is the priority.

How to Set Up Call Forwarding: Step by Step

The exact steps depend on your phone system, but here are the most common methods.

On a Landline Phone

Most traditional phone carriers support call forwarding using star codes:

  1. Activate forwarding: Pick up your phone and dial *72, then dial the number you want calls forwarded to. Wait for a confirmation tone or announcement.
  2. Deactivate forwarding: Pick up your phone and dial *73. You will hear a confirmation tone.

For conditional forwarding:

Note that star codes may vary by carrier. Check with your phone provider for the exact codes if these do not work.

On a Cell Phone

iPhone:

  1. Open Settings
  2. Tap Phone
  3. Tap Call Forwarding
  4. Toggle it on and enter the forwarding number

Android:

  1. Open the Phone app
  2. Tap the three-dot menu and select Settings
  3. Tap Calls or Call forwarding
  4. Select the forwarding type and enter the number

Note: These steps may vary slightly by carrier and phone model. Some carriers require you to activate call forwarding through their app or website rather than through phone settings.

On VoIP and Cloud Phone Systems

If you use a VoIP service like Google Voice, RingCentral, Grasshopper, or OpenPhone, call forwarding is configured through the admin dashboard or app:

  1. Log in to your phone system's web portal or app
  2. Navigate to Call Handling or Call Forwarding settings
  3. Set your forwarding rules — unconditional, no-answer, time-based, or simultaneous ring
  4. Enter the destination number
  5. Save your settings

VoIP systems offer the most flexibility because you can set up complex rules — like forwarding to your cell phone during business hours, then to an AI receptionist after hours, with a different rule for weekends.

Setting Up Smart Forwarding for Maximum Coverage

The most effective call forwarding strategy for small businesses combines multiple forwarding types to create a system where every call gets answered by a live voice:

During business hours:

  1. Your main line rings your office phone and your cell phone simultaneously
  2. If no one answers within 4 rings, the call forwards to your AI receptionist
  3. The AI receptionist answers, qualifies the caller, and books the appointment

After business hours and weekends:

  1. Calls go directly to your AI receptionist (unconditional forwarding)
  2. The AI handles the call, books appointments, and sends you a summary
  3. Emergency calls get flagged for immediate notification

When you are on another call:

  1. The new call forwards immediately to your AI receptionist (busy-line forwarding)
  2. No caller ever hears a busy signal or gets sent to voicemail

This layered approach means your phone is effectively answered 100% of the time, without you needing to be available 24/7.

Common Call Forwarding Mistakes to Avoid

Not testing your setup. After configuring call forwarding, call your own number from a different phone and go through the complete experience. Make sure the forwarding activates correctly, the timing is right, and the destination answers properly.

Setting too many rings before forwarding. Every ring takes about 6 seconds. If you set your phone to ring 6 times before forwarding, the caller has been waiting 36 seconds — an eternity when they are in a hurry. Three to four rings (18 to 24 seconds) is the sweet spot.

Forwarding to a number that also goes to voicemail. If your forwarding destination does not answer, the caller ends up in voicemail anyway. Make sure your forwarding chain ends at a service that always picks up — like an AI receptionist that answers in under one second.

Forgetting about the caller experience. Multiple forwarding hops can result in long delays, weird ringtones, or confusing experiences. Keep your forwarding chain as short as possible — ideally no more than two hops.

Not updating your forwarding when things change. If you change your cell phone number, switch office phones, or adjust your hours, make sure your forwarding rules are updated. A broken forwarding chain means missed calls.

The Best Forwarding Destination: An AI Receptionist

The ideal endpoint for any call forwarding setup is something that answers every time, instantly, and professionally. That is exactly what an AI receptionist does.

When calls forward to an AI receptionist:

This makes your call forwarding setup bulletproof. No matter what happens — you are on a job, in a meeting, asleep, or on vacation — every call reaches a live, professional voice.

Take Action Today

Call forwarding takes five minutes to set up and can immediately change how many calls your business captures. Start by activating no-answer forwarding so that calls you miss go to a backup number instead of voicemail. Then consider adding after-hours forwarding to capture the evening and weekend calls you are currently losing.

SmartCallService makes the perfect forwarding destination. Our AI receptionist answers every forwarded call instantly, handles the conversation professionally, and books appointments directly on your calendar. Try it free for 14 days and pair it with call forwarding to never miss another business call.