156 Model 55i IP Phone User Guide
Additional Features
Enabling/Disabling Call Waiting
Use the following procedure to enable or disable Call Waiting on the IP phone.
1. Click on Basic Settings->Preferences->General.
2. Call Waiting is enabled by default. If required, disable the "Call Waiting" field by
unchecking the check box.
3. Click to save your settings.
Aastra Web UI
Note: "Call Waiting" is enabled by default.