Aastra 9143i Series Administrator's Manual page 705

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
41-001160-03 Rev 00, Release 2.5
to save your changes.
Configuring Advanced Operational Features
Advanced Operational Features
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