User's Manual

Chapter 21 Voice 192

21.8.2.1 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 manual tapping, if the duration is too long, it may be interpreted as

hanging up by the Router.

You can invoke all the supplementary services by using the flash key.

21.8.2.2 Europe Type Supplementary Phone Services

This section describes how to use supplementary phone services with the Europe Type Call

Service Mode. Commands for supplementary services are listed in the table below.

After pressing the flash key, if you do not issue

the sub-command before the default sub-command

timeout (2 seconds) expires or issue an invalid sub-command, the current operation will be aborted.

Table 107 European Flash Key Commands

COMMAND SUB-COMMAND DESCRIPTION

Flash Put a current call on hold to place a second call.

Switch back to the call (if ther

e is no second call).

Flash 0 Drop the call presently on hold or r

eject an incoming call which is

waiting for answer.

Flash 1 Disconnect the current phone connection and answer the

incoming cal

l or resume with caller presently on hold.

Flash 2 1. Switch back and forth between two calls.

2. Put a current call on hold to answer an incoming call.

3. Separate the current three-way conference call into two

individual cal

ls (one is on-line, the other is on hold).

Flash 3 Create three-way conference connection.

Flash *98# Transfer the call to another phone.

European Call Hold

Call hold allows you to put a call (A)

on hold by pressing the flash key.

If you have another call, press the flash key and the

n “2” to switch back and forth between caller A

and B by putting either one on hold.

Press the flash key and then “0” to disconnect the call presently on hold and keep the current call on

ne.