Busy Notify feature
From Zenitel Wiki
| Feature: | Busy Notify |
| Default directory number: | 57 or M - during conversation |
| Feature number: | 62 |
| Parameter 1: | 0 (N/A) |
| Description: | When calling a busy station, activate busy notify by dialling 57 or pressing M-key. The conversation is temporarily parked. The duration of the interruption is programmable from AlphaPro (Exchange & System > System > Timers > Call Request/Busy Notify Display Time). |