ZyXEL Communications P-2812HNU-51c User Manual page 242

Chapter 16 VoIP
When the second call is answered, press the flash key and press "3" to create a three-way
3
conversation.
Hang up the phone to drop the connection.
4
If you want to separate the activated three-way conference into two individual connections (one is
5
on-line, the other is on hold), press the flash key and press "2".
242
P-2812HNU(L)-Fx Series User's Guide