Merge Calls on iPhone: FaceTime & Audio

Merging calls on an iPhone lets you combine an active call with an incoming or held call into a single conference, so you can talk to multiple people at once. This works for standard cellular calls, FaceTime audio calls, and even mixes of both in many cases. Before you start, make sure your carrier supports conference calling (most do) and that you have an active call already connected, plus a second call coming in or a contact ready to call.

What You’ll Need

• An iPhone running a recent version of iOS (iOS 15 or later recommended for the clearest controls).
• A cellular plan that supports conference calling (check with your carrier if unsure).
• For FaceTime audio calls, both parties need an Apple device with FaceTime enabled and signed in with an Apple ID.
• You must already be on one active call before you can merge a second one.

Step-by-Step

1. Start your first call. Make a regular phone call or a FaceTime audio call to the first person. Wait until they answer and you are connected.
2. Bring up the call controls. Tap the green or blue bar at the top of the screen (for cellular) or the audio controls icon (for FaceTime) to expand the full call screen.
3. Add a second call. Tap the + (plus) button, usually labeled “Add Call.” This puts your current call on hold and opens the keypad or your contacts.
4. Dial or choose the second person. Enter a phone number manually, tap a recent call, or select a contact. For FaceTime audio, tap the audio icon next to a contact or search for them in the FaceTime app.
5. Wait for the second person to answer. Once they pick up, you will see both calls listed on your screen—one on hold and one active.
6. Merge the calls. Tap the Merge Calls button (two overlapping circles icon). Your iPhone will combine both lines into one conference call.
7. Add more people (optional). While on the merged call, tap + again to add another person, then tap Merge Calls again. You can repeat this up to the carrier limit (usually 3–5 participants).
8. Manage individual lines. During the conference, tap the i (info) button to see all participants. You can hang up on one person by tapping the red phone icon next to their name, or end the entire call by tapping the red end button.

Common Mistakes

• Tapping “Swap” instead of “Merge.” Swap just switches between the two calls, keeping them separate. You must tap the explicit “Merge Calls” button to combine them.
• Merging before the second person answers. You can only merge after the second call is connected. If you try to merge while it’s still ringing, the option may be grayed out.
• Expecting FaceTime video to merge with cellular. You can merge FaceTime audio with a cellular call, but FaceTime video calls cannot be merged with standard phone calls. Video calls can only merge with other FaceTime video calls.
• Forgetting to check carrier support. Some prepaid or older plans block conference calling. If you don’t see the Merge button, your carrier may not support it.
• Hanging up on one person accidentally. When you tap the info button, be careful—tapping the red icon next to a participant ends that person’s connection, not just the conference view.

Tips

• Use a headset or AirPods. Conference calls can get chaotic; a good microphone helps everyone hear you clearly.
• Mute yourself when not speaking. Tap the mute button (microphone icon) to reduce background noise for other participants.
• Check your carrier’s participant limit. Most carriers allow 3–5 people in a conference. Adding more than the limit will fail silently or drop the newest call.
• For FaceTime audio, make sure everyone is on iOS 15 or later. Older versions may not support merging with cellular calls.
• If you’re on Wi-Fi calling, merging still works. The feature behaves the same as on a cellular connection, but both calls must be on the same network type (either both Wi-Fi or both cellular).
• Practice with a friend first. It’s easier to learn the buttons when you’re not in an important conversation.

Troubleshooting

No “Merge Calls” button appears. This usually means your carrier doesn’t support conference calling, or you’re trying to merge incompatible call types (e.g., FaceTime video with cellular). Check your carrier settings, update iOS, and try again with two regular phone calls.

Merge button is grayed out. The second call might still be connecting. Wait until the person answers, then try again. If it stays grayed out, hang up and start over.

Call drops when you tap Merge. This can happen if your carrier has a weak signal or doesn’t support the feature. Try again in a better coverage area, or contact your carrier to confirm conference calling is enabled on your plan.

FaceTime audio won’t merge with a cellular call. This is a known limitation in some iOS versions. Update to the latest iOS, and if it still fails, use two FaceTime audio calls instead (both parties on Apple devices).

You can’t add a third person after merging. Some carriers limit conferences to two lines only. If you need more participants, consider using a dedicated conference bridge service or a group FaceTime call instead.

Sound quality is poor after merging. This is normal on older devices or weak connections. Ask participants to mute themselves when not talking, and if possible, use Wi-Fi for FaceTime audio parts of the call.

Frequently Asked Questions

Can I merge a FaceTime video call with a regular phone call? No. FaceTime video calls can only merge with other FaceTime video calls. FaceTime audio calls, however, can merge with cellular calls.

How many people can I add to a conference call on iPhone? It depends on your carrier. Most support 3–5 total participants, including yourself. Check with your carrier for the exact limit.

Will merging calls use extra data or minutes? For cellular calls, each participant uses your plan’s minutes (or unlimited minutes if you have them). FaceTime audio calls use data (Wi-Fi or cellular data), not minutes.

Can I merge a call if I’m using an iPhone with two SIMs? Yes, but both calls must be on the same line. You cannot merge a call from SIM 1 with a call from SIM 2 in a single conference.

What happens if someone hangs up during a merged call? The conference continues with the remaining participants. You can see who left by tapping the info button.

Does merging work on iPad or Mac? Yes, but the steps differ slightly. On iPad and Mac, you use the FaceTime app’s “Add Person” feature instead of the phone merge button.

Related

• How to Unsend an iMessage on iPhone
• How to Create a Windows 10 Installation USB Stick
• How to Protect Your Privacy When Using Dictation on Mac