Linksys WIP310 SPA500 Series and WIP310 IP Phone Administration Guide - Page 219

Cisco SPA 500 Series and Wireless IP Phone Field Reference System Tab B Parameter Domain Primary DNS Secondary DNS DNS Server Order DNS Query Mode Syslog Server Debug Server Debug Level Primary NTP Server Secondary NTP Server Description The network domain of the IP phone. DNS server used by IP phone in addition to DHCP supplied DNS servers if DHCP is enabled; when DHCP is disabled, this is the primary DNS server. Defaults to 0.0.0.0. DNS server used by IP phone in addition to DHCP supplied DNS servers if DHCP is enabled; when DHCP is disabled, this is the secondary DNS server. Defaults to 0.0.0.0. Specifies the method for selecting the DNS server. The options are Manual, Manual/DHCP, and DHCP/Manual. Do parallel or sequential DNS Query. With parallel DNS query mode, the IP phone sends the same request to all the DNS servers at the same time when doing a DNS lookup, the first incoming reply is accepted by the IP phone. Defaults to parallel. Specify the syslog server name and port. This feature specifies the server for logging IP phone system information and critical events. If both Debug Server and Syslog Server are specified, Syslog messages are also logged to the Debug Server. The debug server name and port. This feature specifies the server for logging IP phone debug information. The level of detailed output depends on the debug level parameter setting. The debug level from 0-3. The higher the level, the more debug information is generated. Zero (0) means no debug information is generated. To log SIP messages, you must set the Debug Level to at least 2. Defaults to 0. IP address or name of primary NTP server. IP address or name of secondary NTP server. Cisco SPA 500 Series and WIP310 IP Phone Administration Guide 208