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 unavailable, touch and swipe up or down then tap Phone.
Tap the Keypad icon , enter the 10-digit number then tap the Send icon (located at the bottom).
As the recipient's number or name is entered, a matching contact may appear and can be chosen at any time.
Tap Add call .
Tap the Keypad icon , enter the 10-digit number then tap the Send icon.
Alternately, from the Contacts tab, tap the appropriate number from the corresponding contact.