Aastra Telecom 57I C53I 用户指南

Operational Features

5-38

41-001160-00, Rev 01  Release 2.0  

IP Phone Administrator Guide

1

Click on Basic Settings->Preferences->General.

2

Enable the "Suppress DTMF Playback" field by checking the check box.
(Disable this field by unchecking the box). Default is disabled.

3

Click 

 to save your settings. 

You must restart your IP phone for the changes to take affect.

4

Click on Operation->Reset.

5

In the "Restart Phone" field click 

 to restart the IP phone and apply the changes.