Linksys WIP310 SPA500 Series and WIP310 IP Phone Administration Guide - Page 223

Cisco SPA 500 Series and Wireless IP Phone Field Reference SIP Tab B Parameter SIP Reg User Agent Name SIP Accept Language DTMF Relay MIME Type Hook Flash MIME Type Remove Last Reg Use Compact Header Description User-Agent name to be used in a REGISTER request. If this is not specified, the is also used for the REGISTER request. Defaults to blank. Accept-Language header used. To access, click the SIP tab, and fill in the SIP Accept Language field. There is no default (this indicates IP phone does not include this header). If empty, the header is not included. MIME Type used in a SIP INFO message to signal a DTMF event. This field must match that of the Service Provider. Defaults to application/dtmf-relay. MIME Type used in a SIP INFO message to signal a hook flash event. The default is application/hook-flash. Lets you remove the last registration before registering a new one if the value is different. Select yes or no from the drop-down menu. Defaults to no. Lets you use compact SIP headers in outbound SIP messages. Select yes or no from the drop-down menu. If set to yes, the phone uses compact SIP headers in outbound SIP messages. If set to no, the phone uses normal SIP headers. If inbound SIP requests contain compact headers, the phone reuses the same compact headers when generating the response regardless the settings of the parameter. If inbound SIP requests contain normal headers, the phone substitutes those headers with compact headers (if defined by RFC 261) if parameter is set to yes. Default: no Cisco SPA 500 Series and WIP310 IP Phone Administration Guide 212