ZyXEL Communications 1001H ユーザーズマニュアル

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effect.  However, using the flash key is preferred since the timing is much more precise.  With manually
tapping, if the duration is too long, it may be interpreted as hanging up by the Prestige.

ISDN Call Waiting allows you to place a call on hold while you answer another incoming call on the same
telephone (directory) number.

By default call waiting is enabled on both telephone ports (except France where the default is disabled), but
can be toggled on either port from Menu 2.1.

The Call Waiting feature on your ISDN line works in exactly the same way as it does on a regular analog
line (which almost everyone is familiar with). To put the current call on hold and answer the incoming call,
press the flash key after hearing a call waiting indicator tone.

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.

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.

Three Way Calling allows you to add a third party to an existing call. This service must be subscribed from
your telephone company.

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.