Руководство Пользователя для ZyXEL p-2802h-i1

Chapter 10 Voice

P-2802H(W)(L)-I Series User’s Guide

Enable

Select this if your VoIP service provider has a SIP outbound server to handle voice 

calls. This allows the ZyXEL Device to work with any type of NAT router and 

eliminates the need for STUN or a SIP ALG. Turn off any SIP ALG on a NAT router 

in front of the ZyXEL Device to keep it from retranslating the IP address (since this 

is already handled by the outbound proxy server).

Server Address

Enter the IP address or domain name of the SIP outbound proxy server. 

Server Port

Enter the SIP outbound proxy server’s listening port, if your VoIP service provider 

gave you one. Otherwise, keep the default value.

MWI (Message 

Waiting 

Indication)

Enable

Select this if you want to hear a waiting (beeping) dial tone on your phone when 

you have at least one voice message. Your VoIP service provider must support 

this feature.

Expiration Time

Keep the default value for this field, unless your VoIP service provider tells you to 

change it. Enter the number of seconds the SIP server should provide the 

message waiting service each time the ZyXEL Device subscribes to the service. 

Before this time passes, the ZyXEL Device automatically subscribes again.

Fax Option

This field controls how the ZyXEL Device handles fax messages.

G.711 Fax 

Passthrough

Select this if the ZyXEL Device should use G.711 to send fax messages. The peer 

devices must also use G.711.

T.38 Fax Relay

Select this if the ZyXEL Device should send fax messages as UDP or TCP/IP 

packets through IP networks. This provides better quality, but it may have inter-

operability problems. The peer devices must also use T.38.

Call Forward

Call Forward 

Table

Select which call forwarding table you want the ZyXEL Device to use for incoming 

calls. You set up these tables in VoIP > Phone Book > Incoming Call Policy.

Caller Ringing

Enable

Select the check box if you want to specify what tone people hear when they call 

you. The ZyXEL Device provides a default tone, but you can add additional tones 

using IVR. See 

 for more information.

Caller Ringing 

Tone

Select the tone you want people to hear when they call you. You should set up 

these tones using IVR first. See 

 for more information.

On Hold

Enable

Select the check box if you want to specify what tone people hear when you put 

them on hold. The ZyXEL Device provides a default tone, but you can add 

additional tones using IVR. See 

 for more information.

On Hold Tone

Select the tone you want people to hear when you put them on hold. You should 

setup these tones using IVR first. See 

 for more 

information.

Back

Click this to return to the SIP Settings screen without saving your changes.

Apply

Click this to save your changes and to apply them to the ZyXEL Device.

Cancel

Click this to set every field in this screen to its last-saved value.

Table 49   VoIP > SIP Settings > Advanced