ZyXEL Communications P-2602HW(L) Series - Manual (Page 168)

P-2602H(W)(L)-DxA Series User’s Guide
168 Chapter 11 Voice
11.15 Supplementary Phone Services Overview
Supplementary services such as call hold, call waiting, call transfer, … are generally available
from your VoIP service provider. The ZyXEL Device supports the following services:
• Call Hold
• Call Waiting
• Making a Second Call
• Call Transfer
• Call Forwarding (see
Section 11.19 on page 174 )
• Three-Way Conference
• Internal Calls (see
Section 12.3 on page 179 )
Note: To take full advantage of the supplementary phone services available through
the ZyXEL Device's phone ports, you may need to subscribe to the services from your
VoIP service provider.
11.15.1 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 ZyXEL Device.
You can invoke all the supplementary services by using the flash key.
11.15.2 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 60 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.