Chapter 11 Voice

11.7.2 Comfort Noise Generation

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.

11.7.3 Echo Cancellation

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.

11.8 Analog Phone Screen

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

Figure 93 Phone > Analog Phone

Each field is described in the following table.

Table 56 Phone > Analog Phone

LABEL

DESCRIPTION

Phone Port

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

Settings

screen automatically refreshes.

 

 

Outgoing Call Use

 

 

 

SIP1

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

 

calls. If you select both SIP accounts, the ZyXEL Device tries to use SIP2 first.

 

 

SIP2

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

 

calls. If you select both SIP accounts, the ZyXEL Device tries to use SIP2 first.

 

 

Incoming Call

 

apply to

 

 

 

SIP1

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

 

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

 

distinguish between them when you receive phone calls.

 

 

SIP2

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

 

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

 

distinguish between them when you receive phone calls.

 

 

 

161

P-2602H(W)(L)-DxA User’s Guide