Aastra Telecom 53I - Manual (Page 103)

Sylantro Interoperability Features
RN-001029-00, Rev 03, Release 2.1 97
5i Series IP Phone Release Notes
Per-Line Configuration
1 Click on Advanced Settings->Line <N>->Advanced SIP Settings.
2 The "Missed Call Summary Subscription" field is disabled by default. To enable this field, check
the box. This feature allows missed calls that have been redirected by the server, to be incremented
in the missed calls indicator on the phone it was initially directed to.
3 Click to save your changes.
Aastra Web UI