Aastra Telecom 57I CT, 55I, 53I manual Configuring Whitelist Proxy Using the Aastra Web UI

IP Phone Administrator Guide

Advanced Operational Features

FeaturesOperationalAdvanced			Configuring Whitelist Proxy Using the Aastra Web UI
			Use the following procedure to configure the Whitelist Proxy feature using the
			Aastra Web UI.
		Aastra Web UI
	1	Click on Advanced Settings->Global SIP->Advanced SIP Settings
	2	The "Whitelist Proxy" field is disabled by default. To enable this field, check the box.
		When this feature is enabled, an IP phone accepts call requests from a trusted proxy server only. The
		IP phone rejects any call requests from an untrusted proxy server.
	3	Click	to save your changes.

6-20 41-001160-00, Release 2.1, Rev 04