Polycom 1500/1800/2000/4000 manual Modify the following fields

IP Network Services

17 Modify the following fields:

Default IP Network Service – Security (SIP Digest)

Field	Description
SIP Authentication	Click this check box to enable SIP proxy
	authentication.
	Select this check box only if the authentication is
	enabled on the SIP proxy, to enable the Collaboration
	Server to register with the SIP proxy. If the
	authentication is enabled on the SIP proxy and
	disabled on the RMX, calls will fail to connect to the
	conferences.
	Leave this check box cleared if the authentication
	option is disabled on the SIP proxy.

User Name	Enter the user name the Collaboration Server will use
	to authenticate itself with the SIP proxy. This name
	must be defined in the SIP Proxy.
Password	Enter the password the Collaboration Server will use
	to authenticate itself with the SIP proxy. This
	password must be defined in the SIP proxy.

These fields can contain up to 20 ASCII characters.

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