The conference call function on your moto g power 5G lets you talk with multiple people simultaneously so up to 6 parties can participate in the same conversation.
Do one of the following:
From the Keypad, enter a 10-digit number then tap the
Dial icon

.
From the Contacts tab, select a contact then tap
Call
.
Once the call is connected, tap
Add call
.
Each call must be initiated by call originator.
Enter a 10-digit number then tap the
Dial icon
.
As the number or contact is entered, a matching contact may appear and can be selected at any time.
Once the call is connected, tap
Merge
.
To disconnect all calls, tap the
End call icon

.
To disconnect from either party, select
Manage
then tap the
End caller icon

located to the right of the corresponding party.