Three Way Calling - ZyXEL Communications Prestige 128 Plus User Manual

current call on hold and answer the incoming call, press the flash key after
hearing a call waiting indicator tone.
Dropping current call to switch to incoming/holding call.
After hearing a Call Waiting indicator tone, simply hang up the telephone and
wait for the telephone to ring before answering the incoming/holding call.
Notes: An incoming caller receives a busy signal if
♦ You have two calls active (one active and one on hold, or both active using
Three Way Calling) already.
♦ You are dialing a number on the B-Channel the incoming caller is attempting
to reach, but have not yet established a connection.
9.5

Three way calling

The Three Way Call feature allows you to add a third party to an existing call.
This service must be subscribed from your telephone company.
9.5.1 How To Use Three Way Calling
If you wish to call someone and conference him/her in with an existing call:
♦ Press the flash key to put the existing call on hold and receive a dial tone.
♦ Dial the third party's telephone number.
♦ When you are ready to conference the calls together, press the flash key
again to establish a Three Way Conference Call.
Note: If you wish to cancel your attempt to establish the conference call because
the third party's line in busy or if they don't answer, simply hang-up the
telephone and pick it back up after it starts ringing to return to the first caller.
To drop the last call added to the three-way-call:
Advanced Phone Services
Prestige 128+ ISDN Router
9-3