Linksys WIP310 SPA500 Series and WIP310 IP Phone Administration Guide - Page 94

Configuring SIP, SPCP, and NAT Configuring SIP 4 Support for SIP NOTIFY XML-Service The Cisco SPA 500 Series IP Phones support the SIP NOTIFY XML-Service event. On receipt of a SIP NOTIFY message with an XML-Service event, the IP phone challenges the NOTIFY with a 401 response if the message does not contain correct credentials. The client must be furnish the correct credentials using MD5 digest with the SIP account password for the corresponding line of the IP phone. The body of the message may contain the XML event Message. For example: Authentication: challenge = MD5( MD5(A1) ":" nonce ":" nc-value ":" cnonce ":" qop-value ":" MD5(A2) ) where A1 = username ":" realm ":" passwd and A2 = Method ":" digest-uri Configuring SIP SIP settings for the Cisco SPA 500 Series and Wireless IP Phones are configured for the phone in general and for individual extensions. The following sections describe SIP configuration. Configuring SIP Parameters To configure general SIP parameters, including enabling CTI: STEP 1 Log in to the web administration interface. STEP 2 Click Admin Login and advanced. STEP 3 Click the SIP tab. STEP 4 Under SIP Parameters, make the necessary configuration changes to the fields shown in the following table and click Submit All Changes. Cisco SPA 500 Series and WIP310 IP Phone Administration Guide 83