ZyXEL Communications FMG3025-D10A 사용자 설명서

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 Chapter 18 VoIP
FMG3024-D10A / FMG3025-D10A Series User’s Guide
201
• Call  Hold
• Call Waiting
• Making a Second Call
• Call Transfer
• Three-Way Conference
• Internal Calls
• Do not Disturb
Note: To take full advantage of the supplementary phone services available through the 
Device's phone ports, you may need to subscribe to the services from your VoIP 
service provider.
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 Device.
You can invoke all the supplementary services by using the flash key. 
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 
time-out (2 seconds) expires or issue an invalid sub-command, the current operation will be 
aborted.
Table 65   
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 there is no second call).
Flash
0
Drop the call presently on hold or reject an incoming call which is 
waiting for answer.
Flash
1
Disconnect the current phone connection and answer the 
incoming call 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 calls (one is on-line, the other is on hold).
Flash
3
Create three-way conference connection.
Flash 
*98#
Transfer the call to another phone.