While on a call, press OPTIONS.
Scroll to 3-Way Call and press the OK key.
Scroll to the desired option and press the OK key.
If Contacts or Recent History is selected, scroll to the desired number or contact and then press the TALK key.
If Enter Phone# is selected, enter the 10-digit number and then press the TALK key.
After the second call is connected, press JOIN.
Press the END key to end the conference call.
The conference call is complete.