Aastra 9143i Series Administrator's Manual page 651

Enabling/Disabling XML SIP NOTIFY Using the Aastra Web UI
Use the following procedure to enable/disable the XML SIP NOTIFY feature in
the Aastra Web UI.
Aastra Web UI
Enabling/Disabling the XML SIP NOTIFY Feature
1 Click on Advanced Settings->Global SIP->Advanced SIP Settings.
XML SIP Notify Parameter
41-001160-03 Rev 00, Release 2.5
Configuring Operational Features
Enabling Whitelist Proxy is recommended
Operational Features
5-347