ZyXEL P-2802HW-I1 User Guide - Page 140

Chapter 10 Voice Table 49 VoIP > SIP Settings > Advanced LABEL DESCRIPTION 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 interoperability 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 Section 10.2.9 on page 133 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 Section 10.2.9 on page 133 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 Section 10.2.9 on page 133 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 Section 10.2.9 on page 133 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. 140 P-2802H(W)(L)-I Series User's Guide