public void setPhoneNumberId(String phoneNumberId) {
        this.phoneNumberId = phoneNumberId;
    }
<p>
The unique identifier for the phone number.
</p>

@param phoneNumberId
       The unique identifier for the phone number.
aws-java-sdk-pinpointsmsvoicev2/src/main/java/com/amazonaws/services/pinpointsmsvoicev2/model/PhoneNumberInformation.java