ZyXEL MAX-306 User Guide - Page 155
Table 57, The Service Configuration Screens, User's Guide
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Chapter 12 The Service Configuration Screens Table 57 VOICE > Service Configuration > SIP Settings > Advanced (continued) LABEL DESCRIPTION Active Select this if all of the following conditions are satisfied. • There is a NAT router between the WiMAX Device and the SIP server. • The NAT router is not a SIP ALG. • Your VoIP service provider gave you an IP address or domain name for a STUN server. • Otherwise, clear this field. Server Address Enter the IP address or domain name of the STUN server provided by your VoIP service provider. Server Port Enter the STUN server's listening port, if your VoIP service provider gave you one. Otherwise, keep the default value. Use NAT Active Select this if you want the WiMAX Device to send SIP traffic to a specific NAT router. You must also configure the NAT router to forward traffic with the specified port to the WiMAX Device. This eliminates the need for STUN or a SIP ALG. Server Address Enter the public IP address or domain name of the NAT router. Server Port Enter the port number that your SIP sessions use with the public IP address of the NAT router. Outbound Proxy Active Select this if your VoIP service provider has a SIP outbound server to handle voice calls. This allows the WiMAX 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 WiMAX Device to keep it from re-translating 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. NAT Keep Alive Active Select this to stop NAT routers between the WiMAX Device and SIP server (a SIP proxy server or outbound proxy server) from dropping the SIP session. The WiMAX Device does this by sending SIP notify messages to the SIP server based on the specified interval. Keep Alive with Select this if the SIP server is a SIP proxy server. SIP Proxy Keep Alive with Select this if the SIP server is an outbound proxy server. You must Outbound Proxy enable Outbound Proxy to use this. Keep Alive Interval Enter how often (in seconds) the WiMAX Device should send SIP notify messages to the SIP server. 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. User's Guide 155