ZyXEL p-2802h-i1 Guia Do Utilizador

Chapter 10 Voice

P-2802H(W)(L)-I Series User’s Guide

When using VAD, the ZyXEL Device generates comfort noise when the other party is not 
speaking. The comfort noise lets you know that the line is still connected as total silence could 
easily be mistaken for a lost connection.

G.168 is an ITU-T standard for eliminating the echo caused by the sound of your voice 
reverberating in the telephone receiver while you talk.

Use this screen to control which SIP accounts and PSTN line each phone uses. To access this 
screen, click VoIP > Phone > Analog Phone.

Figure 78   Phone > Analog Phone

Each field is described in the following table.

Table 51   Phone > Analog Phone

Phone Port 

Settings

Select the phone port you want to see in this screen. If you change this field, the 

screen automatically refreshes.

Outgoing Call Use If you select both SIP accounts, the ZyXEL Device tries to use SIP2 first. If you do 

not select a SIP account, you cannot make VoIP calls on the phone connected to 

this phone port.

SIP1

Select this if you want this phone port to use the SIP1 account when it makes 

calls. 

SIP2

Select this if you want this phone port to use the SIP2 account when it makes 

calls. 

Incoming Call 

apply to

If you select more than one source for incoming calls, there is no way to 

distinguish between them when you receive phone calls. If you do not select a 

source for incoming calls, you cannot receive any calls on this phone port.

SIP1

Select this if you want to receive phone calls for the SIP1 account on this phone 

port. 

SIP2

Select this if you want to receive phone calls for the SIP2 account on this phone 

port.