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Hi - You can lower down the ringer volume on the cordless handset or telephone base of the VTech IS8151-4 if you would like to adjust the volume of the Caller ID announce. There is also an option to turn off the Caller ID announce feature for the unit not to announce the caller's information on every call. For more details, please contact our Consumer Sales and Service Center between the hours of 9:00 AM and 3:00 PM Monday through Friday at 1-800-595-9511. Thank you, -VTech Support
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