Go to the “Contacts” tab. Select the first contact you want to add to the conference call. Tap on the phone number of that contact. Once the call is connected, tap on “Add Call” and select the next contact you wish to add. Repeat this process for each participant you want to include in the conference call.
Source: cnn.com. Limitations of Three-Way Calling on iPhones. The ability to do a 3-way call (also known as a conference call) on an iPhone depends on the type of network connection it has.
The app walks you through how to do this. Once done, you can head into Settings > Calls > Incoming Call Options and then enable a toggle switch that lets you turn recording on. From there, it's as Open the Skype app. Tap Contacts. Select the contact you wish to call. Skype users should have a green, yellow, or red cloud status icon near their name. Tap the phone icon to begin a call. Now you know the most popular ways to make free international calls on your iPhone. On an iPhone or iPad, tap the Calls icon at the bottom. On an Android device, tap the More icon and then select Calls. If the person you wish to call already appears in recent calls, tap the name. How to start a conference call. Dial the first person and wait for the call to connect. Tap add call . Dial the second person and wait for the call to connect. Tap merge calls . The two calls merge into a conference call. To add additional people, repeat steps 2-4. If you don’t see the option to add another call, you may have reached the Step 1: Launch the phone app on your iPhone. Step 2: Go to the Recents view. Step 3: Find the international number that you just called, then tap the info button (it looks like a lowercase “i Open the Phone app on your iPhone. Tap on the “Recents” tab at the bottom of the screen. You will see a list of your recent calls, organized by date and time. Scroll through the list to find the call you want to explore in more detail. Tap on the specific call to expand the entry and view additional information.3. Tap the red phone icon next to the person you want to drop from the call, and then tap "End Call." With the iPhone's conference calling feature, you can initiate a call and add up to four.