ZyXEL p-2802h-i1 Guia Do Utilizador

 Chapter 10 Voice

P-2802H(W)(L)-I Series User’s Guide

Supplementary services such as call hold, call waiting, call transfer, etc. 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 

)

• Three-Way Conference
• Internal Calls
• Call Park and Pickup
• Do not Disturb

"

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.

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. 

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 54   European Flash Key Commands

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.