Aastra 6757I User Manual page 224

1. Click on Basic Settings->Preferences->General.
2. The "Call Hold Reminder" field is disabled by default. To enabled this field, check the
box.
When this feature is enabled, the reminder ring splash timer starts as soon as you put a call
on hold (even when no other calls are active on the phone).The phone initiates a reminder
ring splash periodically for the single call on hold. When disabled, no reminder ring splash
is audible.
3. Click Save Settings.
218 Model 6757i IP Phone User Guide