Aastra Telecom REV 06 - Manual (Page 138)

Features in Release 2.2
134 RN-001029-00, Rev 06, Release 2.2
IP Phone Release Notes 2.2
Configuring Server-Side DND, CFWD, and ACD Using the Aastra Web
UI
Use the following procedure to enable/disable the server-side “as-feature-event”
on the IP Phone using the Aastra Web UI.
.
Aastra Web UI
1 Click on Advanced Settings->LineN->Advanced SIP Settings.
2 In the “Advanced SIP Settings” section, enable the "As--Feature-Event Subscription" field, by
checking the check box. (Disable this field by unchecking the box).
3 Click to save your changes.