What Is Call Flip?
Call flip is a feature of business phone systems that lets you move an active call from one device you're using to another device you own, without ending the call. You might flip from a desk phone to a mobile app, from a mobile to a laptop softphone, or from a laptop back to a desk phone. The person you're speaking with stays connected the whole time.
The key point is that the call stays with you. Nothing changes for the caller apart from a brief moment of silence while the audio moves. They don't hear hold music, they don't get a new voice, and they don't need to be told anything. Your caller ID, your business number and your call record all stay the same.
Call flip only exists because modern phone systems are built around accounts rather than handsets. On a traditional landline, the line is tied to one physical phone socket, so there's nothing to flip to. On a cloud or VoIP phone system, your number lives in the provider's platform, and any device you sign in on can make and receive calls on it. That's what makes it possible to hand a live call from one device to another.
How Does Call Flip Work?
From your side, call flip takes a few seconds. Behind the scenes, the phone system is keeping one half of the call steady while it rebuilds the other half.
Every call on a cloud phone system has two parts, often called "legs". One leg runs between the phone system and the outside caller. The other runs between the phone system and your device. When you flip a call, the system keeps the caller's leg open and simply builds a new leg to your second device. Once that new leg is connected, it drops the old one. Because the caller's side never disconnects, the call doesn't end.
In practice, a call flip usually follows four steps.
Step 1: You're on a live call You're talking on one device, for example a desk phone or the desktop app, using your business number.
Step 2: You trigger the flip Depending on the system, you tap a "flip" or "move call" button in the app, dial a short code, or simply answer the call on your other device when the system prompts you.
Step 3: Your other device picks up The second device rings or connects automatically. You answer, and the audio switches over.
Step 4: The first device drops off Once the new device is connected, the original device leaves the call. You carry on talking, and the caller hears at most a short pause.
Some systems let you choose which device to send the call to, while others ring all your other signed-in devices and connect whichever one you answer first. A few also offer a "join from another device" option that adds the new device without dropping the old one, which is handy if you want to check the audio before you move.
Call Flip vs. Call Transfer vs. Call Forwarding
These three features are easy to confuse because they all move calls around. The difference is who ends up on the call and when the move happens.
| Feature | When it happens | Who takes the call | What the caller notices |
| Call flip | During a live call | You, on a different device | A short pause |
| Call transfer | During a live call | A different person or team | Usually hold music, then a new voice |
| Call forwarding | Before the call is answered | Another number or device, set in advance | Usually nothing; the call just rings elsewhere |
Call transfer Use call transfer when someone else needs to take over the conversation, such as a specialist, a manager or another department. The call leaves you entirely.
Call forwarding Use call forwarding when you want incoming calls to ring somewhere else before anyone answers, for example to your mobile after hours or to a colleague while you're on leave.
Call flip Use call flip when the conversation should stay with you, but you need to change the device you're using. Nobody else joins the call, and the caller's experience doesn't change.
A simple way to remember it: forwarding decides where a call goes before it's answered, transfer hands a live call to someone else, and flip moves a live call between your own devices.
Call Flipping vs. Call Switching
Some providers offer two ways to move a live call between devices, and they sometimes call them by different names. The difference is which device starts the move.
Call flipping (push) You start the move from the device you're currently using. You tap a button or enter a code, and the call is pushed to your other device. This works well when you're about to leave your desk and your mobile is in your pocket.
Call switching (pull) You start the move from the device you want to use next. You open the app on that device, see the live call, and pull it across. This suits situations where the new device is already in front of you, such as walking into a meeting room with a conference phone or sitting down at a laptop. Some systems add a confirmation step, such as a code, to make sure only you can pull your calls.
| # | Call flipping | Call switching |
| Where you start | The device you're on now | The device you're moving to |
| Typical action | Tap "flip" or dial a code | Open the app and "pull" or "pick up" the call |
| Best for | Leaving your desk mid-call | Arriving at a new device mid-call |
| Result | Same: the call moves, the caller stays connected | Same |
Both approaches need a cloud or VoIP phone system, neither works on a traditional landline, and both keep the caller connected. Many people use the two terms interchangeably, so check what your provider means before you train your team. Microsoft Teams, for example, offers a "Transfer to this device" option you choose on the second device, which is effectively a pull.
When Is Call Flip Useful?
Call flip sounds like a small convenience, but it removes a lot of friction for people who move around during the working day. These are the situations where it gets used most.
Leaving the office mid-call You're on a long call at your desk and need to leave. Flip it to your mobile and keep talking on the way out.
Moving somewhere quieter A sensitive conversation starts in an open-plan office. Flip the call to your mobile and step into a private room.
Fixing poor audio Your laptop's Wi-Fi starts to break up. Flip the call to your mobile on a cellular connection, or to a desk phone on a wired network.
A battery about to die Your mobile is on 3% halfway through an important call. Flip it to your laptop before it shuts down.
Field and site visits Technicians, estate agents and sales reps can take a call on a laptop in the car and flip it to their mobile when they step out to a site.
Getting to the right screen A customer asks something that needs your CRM or account notes. Flip the call from your mobile to your desktop app so you can see their history while you talk.
Why Call Flip Matters for Businesses
The real value of call flip is what it prevents. Every "let me call you back" is a delay, and some callbacks never connect.
No dropped conversations Calls carry on instead of ending and restarting, which avoids missed callbacks and lost momentum on sales and support calls.
Your business number stays in place Because the call stays on the business line, you never need to call a client back from a personal mobile number that then appears on their screen.
One clean call record A flipped call shows up as one call in your logs, with one recording and one set of notes, instead of two separate fragments.
Support for hybrid and mobile work Staff who switch between home, office and the road can move freely without worrying about which device they answered on.
What to Check Before You Rely on Call Flip
Call flip is simple, but it depends on how your provider has built it. Check a few things before your team starts relying on it.
Both devices must be signed in The second device needs to be logged in to the same account, online and allowed to receive calls. If your mobile app is signed out or has notifications blocked, the flip has nowhere to go.
Network quality on the new device The call is only as good as the connection on the device you flip to. A weak signal or poor Wi-Fi will affect audio after the move, so it's worth running a quick VoIP speed test on the networks your team uses most, to confirm latency, jitter and packet loss are low enough for clear calls.
How the flip is triggered Some systems flip silently with one tap; others ring your other devices and wait for you to answer. Know which one your team has, so nobody is caught out.
Recording and call logs Confirm that a flipped call keeps one continuous recording and one log entry, especially if you use call recording for compliance or quality reviews.
Conference and monitored calls Calls with several participants, or calls a supervisor is monitoring, may behave differently. Test these before relying on them.
The name your provider uses You may find the feature listed as call flip, call move, call handoff, call pull or device switch. The function is the same.
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Ready to Get Started?
Call flip lets you move a live call between your own devices without hanging up, so conversations carry on when you leave your desk, lose Wi-Fi or need a different screen. It differs from call transfer, which hands the call to someone else, and call forwarding, which redirects calls before they're answered. To use it reliably, keep the apps signed in on every device and check how your provider handles recordings and logs.
Calilio includes call flip on every plan, so you can move live calls between the desktop, web and mobile apps on the same business number.
Frequently Asked Questions
What is call flip?
Call flip is a business phone system feature that moves a live call from one of your devices to another, such as from a desk phone to a mobile app, without hanging up. The caller stays connected and usually hears only a brief pause.
What is the difference between call flip and call transfer?
Call flip moves a call between your own devices, so you stay on the call. Call transfer hands the call to a different person or team, so someone else takes over the conversation.
Is call flip the same as call forwarding?
No. Call forwarding sends incoming calls to another number or device before they're answered. Call flip moves a call that's already in progress from one of your devices to another.
What is the difference between call flipping and call switching?
Call flipping usually means pushing a live call from the device you're on to another device. Call switching usually means pulling the call from the new device. The result is the same, and many providers use the terms interchangeably.
Does the caller know when I flip a call?
Usually not. The caller's connection to the phone system stays open, so they typically hear a short pause of a second or so while the audio moves to your new device.
Can I flip a call to a colleague?
No. Call flip only moves calls between devices signed in to your own account. To hand a call to a colleague, use call transfer, either a warm transfer with an introduction or a cold transfer without one.
Does call flip work on a landline?
No. Traditional landlines tie a number to one physical line, so there's no second device to move to. Call flip needs a cloud or VoIP phone system where the number is linked to your account and can ring on several devices.