The HD Voice feature in Verizon 4G LTE coverage area allows up to 6 parties but each call must be initiated by call originator.
From a Home screen, tap Phone (lower-left).
If not available, touch and swipe up to display all apps then tap Phone .
Tap the Keypad icon , enter a 10-digit number then tap the Send icon .
To place a call from the Contacts list, tap All contacts and select a contact then tap the appropriate number from the corresponding contact.
Once the call is connected, tap the Add call icon (at the center left).
Tap the Keypad icon and enter a 10-digit number then tap the Phone icon.
Once the call is connected, tap the Merge Calls icon (at the center left).