Cancel own call Request feature
From Zenitel Wiki
| Feature: | Cancel a Call Request |
| Default directory number: | 626 |
| Feature number: | 86 |
| Parameter 1: | 0 (N/A) |
| Description: | Inverse operation of the Call Request feature, i.e. removing a Call Request mail from one or more stations.Call Request is a security feature where the calling station is queued on a display station. Procedure: 623 + directory number (station or group). The calling station is disconnected, and is removed from the mail queue. |