Cisco Systems 1.3.0 manual SIP Phone Registration, Figure C-1. Registration

SIP Phone: Registration

SIP Phone: Registration

Call Scenario Figure C-1illustrates a SIP phone registering with the Marshal server.

Authentication There are three registration methods, no authentication, access list

Methodsauthentication or digest authentication. Table C-1shows the authentication criteria used by each method.

Table C-1. Authentication Methods and Criteria

Method	Authentication Criteria
No Authentication	None
Access List	User’s IP Address
Digest	User’s name and password

VOCAL System

Redirect Server

User Agent

Marshal Server

SIP Phone

Calling Party

Figure C-1. Registration

C-3