How do I do a conference call?

To connect three lines (max):

1. 1. Dial 1^st number
2. 2. Once connected, select “Hold” using button under horizontal menu
3. 3. Select “New Call”
4. 4. Dial 2^nd number
5. 5. Press arrow button to scroll up to 1^st call
6. 6. Select “More” then  “Join”