AASTRA 6739i User Guide EN - Manual (Page 175)

Additional Features
41-001317-05 REV01 – 06.2013
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Stuttered Dial Tone
You can enable or disable the playing of a stuttered dial tone when there is a message waiting on the IP phone.
Configuring Stuttered Dial Tone
Use the following procedures to configure stuttered dial tone on the IP phone.
Note:
"Stuttered Dial Tone" is enabled by default.
Aastra Web UI
1. Click on Basic Settings->Preferences->General.
2. The “Stuttered Dial Tone” field is enabled by default. To disable this field, uncheck the box.
3. Click Save Settings.