What is Call Forwarding?

Call forwarding is a telephony feature that automatically redirects incoming phone calls from one number to another. Instead of ringing the original phone line, the call is forwarded to a different number, device, or location.

Businesses commonly use call forwarding to ensure calls are not missed when employees are unavailable, working remotely, or away from their primary phone. For example, calls to an office number can be forwarded to a mobile phone, another extension, or a call center.

Modern VoIP and cloud communication platforms allow organizations to configure call forwarding rules based on factors such as time of day, agent availability, or department routing. This helps ensure callers reach someone who can assist them without interruption.

How Call Forwarding Works

Call forwarding redirects incoming calls from one phone number to another destination. Instead of ringing the original phone line, the telephony system automatically sends the call to a predefined number, extension, or device.

When a call is placed to the primary number, the phone system evaluates the configured forwarding rules. If forwarding conditions are met, the system routes the call to the designated destination.

Businesses commonly forward calls to:

• Another employee or extension
• A mobile phone
• A call queue or support team
• A voicemail inbox

Forwarding can be configured permanently or activated temporarily when someone is unavailable.

Types of Call Forwarding

Modern phone systems support several types of call forwarding depending on how calls should be handled. Each method provides a different way to redirect calls based on availability, schedules, or call handling preferences.

1. Unconditional Call Forwarding

Unconditional forwarding automatically redirects all incoming calls to another phone number without ringing the original phone first.

This type of forwarding is often used when a person is working remotely, traveling, or temporarily unavailable to answer calls from their primary device. For example, a business may forward calls from an office desk phone to a mobile phone so employees can continue receiving calls while away from the office.

Because every call is redirected immediately, unconditional forwarding ensures that calls reach the designated number without delay.

2. Conditional Call Forwarding

Conditional forwarding only redirects calls when specific conditions are met. Instead of forwarding every call, the system evaluates certain triggers before deciding whether to redirect the call.

Common conditions include:

• When the line is busy
• When the call is not answered
• When the phone is unreachable or turned off

For example, a business may configure conditional forwarding so that calls ring a desk phone first. If the call is not answered within a set number of seconds, it can automatically forward to a mobile phone or another team member.

This approach helps ensure calls are still answered while giving the primary recipient the first opportunity to pick up.

3. Time-Based Forwarding

Time-based forwarding routes calls differently depending on the time of day or business hours.

Organizations often use this feature to manage after-hours call handling. During normal working hours, calls may be directed to a support team or office line. Outside of those hours, calls can be forwarded to an on-call representative, an answering service, or voicemail.

Time-based forwarding is especially useful for businesses that operate across multiple time zones or need to provide support outside standard office hours.

4. Sequential Forwarding

Sequential forwarding allows calls to ring multiple phone numbers one after another until someone answers the call.

For example, a call might first ring a desk phone. If there is no answer, the system forwards the call to a mobile phone, and then to another team member if necessary.

This approach ensures calls have multiple opportunities to be answered before reaching voicemail. Sequential forwarding is commonly used in small teams, service organizations, and sales groups where several people may be able to handle an incoming call.

By routing calls through a sequence of numbers, businesses can significantly reduce missed calls while maintaining flexibility in how calls are handled.

Should I Keep Call Forwarding On or Off?

Whether to keep call forwarding on depends on your availability and how important it is that calls reach you in real time.

Keep call forwarding on when:

• You are working remotely or away from your primary phone
• You need to stay reachable on a mobile device while your desk phone goes unattended
• Your team has after-hours coverage requirements
• You are temporarily unavailable but do not want callers to go straight to voicemail

Turn call forwarding off when:

• You are back at your primary phone and available to answer calls directly
• Forwarding is adding unnecessary steps or delays to call handling
• You want full control over which calls you accept without automatic redirection

For most business users, conditional forwarding — which only redirects calls when the line is busy or unanswered — is the most practical default. It gives you the first opportunity to pick up while ensuring calls are not lost if you are unavailable.

Disadvantages of Call Forwarding

Call forwarding improves availability but comes with trade-offs that organizations should plan around.

Additional call charges
Forwarding calls to external numbers, particularly mobile phones or numbers in other regions, can incur additional carrier charges depending on the phone plan and destination.

Increased call latency
Adding a forwarding step introduces a slight delay before the call reaches its destination. In most cases this is minimal, but it can be noticeable depending on the network and forwarding destination.

Loss of caller ID context
When calls are forwarded, the receiving device may show the forwarding number rather than the original caller’s number. This can make it harder to identify who is calling before answering.

Missed call data and logging
On standard phone systems, forwarded calls may not be tracked the same way as direct calls. Without proper integration, forwarded call activity can create gaps in call records and reporting.

Dependency on a single forwarding destination
If the forwarding number is also unavailable, the call may go unanswered entirely unless a fallback destination is configured.

For organizations managing high call volumes, these limitations are best addressed by pairing call forwarding with a communication platform that includes call logging, routing rules, and CRM integration.

How Do I Know If My Calls Are Being Forwarded?

There are a few ways to tell whether call forwarding is active on your phone or phone system.

Check your phone settings
On most smartphones, call forwarding status is visible in the Phone or Call Settings menu. If forwarding is enabled, the destination number will typically be displayed.

Look for a forwarding indicator
Some carriers display a symbol or notification on the phone’s status bar when call forwarding is active. This varies by carrier and device.

Use a carrier status code
On many mobile networks, you can dial *#21# to check whether unconditional call forwarding is enabled and see the number calls are being forwarded to. Availability of this code varies by carrier.

Make a test call
Call your own number from another device. If the call rings a different phone than expected, forwarding is likely active.

Check your admin console
For business phone systems and VoIP platforms, forwarding rules are typically visible and configurable in the admin dashboard. Administrators can review which numbers have forwarding enabled and where calls are being sent.

Benefits of Call Forwarding

Call forwarding helps organizations maintain consistent communication and reduce missed calls.

Improved availability
Calls can be routed to employees working remotely or on mobile devices.

Reduced missed calls
Forwarding ensures calls reach someone even when the original line is unavailable.

Better customer experience
Callers can reach a live representative without dialing multiple numbers.

Flexible call handling
Businesses can adapt call routing based on schedules, staffing levels, or departments.

Business continuity
Call forwarding ensures communication continues even during outages or office closures.

Call Forwarding vs Call Routing

Call forwarding and call routing are closely related but serve different functions in a phone system.

Call forwarding is typically used to redirect calls to a different number, while call routing distributes calls across teams or departments.

Call Forwarding Best Practices

To use call forwarding effectively, organizations should establish clear call handling rules and regularly review how forwarded calls are being managed. When configured correctly, call forwarding can improve availability and ensure important calls are not missed.

Use conditional forwarding whenever possible.
Forwarding every call can create unnecessary routing and confusion. Conditional forwarding allows calls to reach the primary recipient first and only redirects them if the line is busy, unanswered, or unreachable.

Plan after-hours coverage carefully.
Businesses should define how calls are handled outside normal working hours. Calls may be forwarded to an on-call team member, an answering service, or voicemail depending on the organization’s support model.

Test forwarding rules regularly.
Call forwarding configurations should be tested periodically to confirm calls are being routed to the correct number or team. Changes to phone systems, employees, or schedules can sometimes affect routing behavior.

Combine forwarding with other call management tools.
For organizations handling higher call volumes, forwarding works best when paired with call routing, queues, or IVR systems. These tools help distribute calls across teams rather than relying on a single forwarding number.

Monitor call performance and missed calls.
Tracking call data such as missed calls, response times, and forwarding frequency can reveal gaps in coverage or inefficiencies in call handling. Regular monitoring helps ensure callers are consistently reaching the right representative.

How to Forward Calls on iPhone

You can enable call forwarding on an iPhone through the device’s settings. This allows incoming calls to automatically redirect to another phone number.

To enable call forwarding on iPhone:

1. Open Settings.
2. Scroll down and tap Phone.
3. Tap Call Forwarding.
4. Toggle Call Forwarding to On.
5. Tap Forward To and enter the phone number where calls should be sent.

Once enabled, all incoming calls to your iPhone will be forwarded to the selected number.

How to Forward Calls on Mobile Phones (General Method)

Most mobile phones support call forwarding through carrier settings or dial codes.

Typical steps:

1. Open your Phone or Dialer app (softphone).
2. Access Settings or Call Settings.
3. Select Call Forwarding.
4. Choose the forwarding type (always forward, when busy, or when unanswered).
5. Enter the phone number where calls should be redirected.

The exact steps may vary depending on your phone model or mobile carrier.

How to Cancel or Disable Call Forwarding

If you no longer want calls to be redirected, you can disable call forwarding through the same settings.

To disable call forwarding on iPhone:

1. Open Settings.
2. Tap Phone.
3. Tap Call Forwarding.
4. Toggle Call Forwarding to Off.

On many mobile networks, call forwarding can also be disabled using carrier dial codes such as ##002#, though availability varies by provider.

What It Means When Your Call Is Forwarded to Voicemail

When you hear a message saying your call has been forwarded to voicemail, it means the call was automatically redirected to the recipient’s voicemail system instead of ringing their phone.

This can happen for several reasons:

• The recipient’s phone is turned off.
• The phone is out of service or has no signal.
• The line is busy or the call was declined.
• Forwarding rules send unanswered calls directly to voicemail.
• The recipient has Do Not Disturb or similar settings enabled.

In most cases, it simply means the person is unavailable and their phone system forwarded the call so you can leave a message.

How Revenue.io Supports Call Forwarding

Revenue.io supports forwarding through the RingDNA Communications Hub, allowing both administrators and users to configure forwarding for inbound and outbound calls.

At the admin level, call forwarding can be enabled in the Admin Console under RingDNA settings. Administrators can control features such as forwarding prompts (requiring the user to press a key to accept the call), forwarding timeouts, and whether offline forwarding is allowed.

At the user level, representatives can add a forwarding number directly in the RingDNA dialer. The system verifies the number through an automated call, and once confirmed, calls can be forwarded to that device. Outbound calls are initiated through the dialer but connected through the forwarding phone, while inbound calls still trigger CTI screen pops and automatic logging in Salesforce.

Manage Call Forwarding with Revenue.io

Call forwarding helps ensure important conversations are never missed. With the RingDNA Communications Hub by Revenue.io, teams can forward calls to mobile devices, remote offices, or other numbers while still capturing call activity in Salesforce. This allows revenue teams to stay connected with prospects and customers while maintaining full visibility into call performance.

Watch an interactive demo of Call Forwarding from Revenue.io.