Setting Up Supplemental Phone Service; The Flash Key; Call Waiting - ZyXEL Communications Prestige 128 Plus User Manual

Prestige 128+ ISDN Router
9.2

Setting Up Supplemental Phone Service

All Supplemental Phone Services are enabled by default except for Call Waiting,
which is disabled by default but can be enabled in Menu 2.1- ISDN Advanced
Setup. The Calling Line Indication or Caller ID, also in this menu decides
whether the other party can see your number when you call. If set to Presented
(CLIP) (default), the Prestige sends the caller ID and the party you call can see
your number, otherwise, the caller ID is blocked.
9.3

The Flash Key

Flashing means to press the hook for a short period of time (a few hundred
milliseconds) before releasing it. On newer telephones, there should be a "flash"
key (button) that generates the signal electronically. If the flash key is not
available, you can tap (press and immediately release) the hook by hand to
achieve the same 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.
9.4

Call Waiting

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 disabled on both telephone ports, but can be enabled on
either port from Menu 2.1.
9.4.1 How to use call waiting
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
9-2 Advanced Phone Services