Rfc3311 Support; Support For Sip Notify Xml-Service - Cisco 521SG - Unified IP Phone VoIP Administration Manual

Configuring SIP, SPCP, and NAT
SIP and Cisco IP Phones
Cisco Small Business SPA300 Series, SPA500 Series, and WIP310 IP Phone Administration Guide
The default priority is 0 and default weight is 1. The default port is 0, and the
application substitutes the proper port value (for example, port 5060 for SIP).

RFC3311 Support

The Cisco SPA525G or Cisco SPA525G2 support RFC-3311, the SIP UPDATE
Method.

Support for SIP NOTIFY XML-Service

The Cisco SPA300 Series and Cisco SPA500 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 can contain the XML event Message. For example:
<CiscoIPPhoneExecute>
<ExecuteItem Priority="0" URL="http://xmlserver.com/event.xml"/>
</CiscoIPPhoneExecute>
Authentication:
challenge = MD5( MD5(A1) ":" nonce ":" nc-value ":" cnonce ":" qop-value
":" MD5(A2) )
where A1 = username ":" realm ":" passwd
and A2 = Method ":" digest-uri
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