public void setOriginationPhoneNumber(String originationPhoneNumber) {
        this.originationPhoneNumber = originationPhoneNumber;
    }
The phone number that Amazon Pinpoint should use to send the voice message. This isn't necessarily the phone
number that appears on recipients' devices when they receive the message, because you can specify a CallerId
parameter in the request.

@param originationPhoneNumber
       The phone number that Amazon Pinpoint should use to send the voice message. This isn't necessarily the
       phone number that appears on recipients' devices when they receive the message, because you can specify a
       CallerId parameter in the request.
aws-java-sdk-pinpointsmsvoice/src/main/java/com/amazonaws/services/pinpointsmsvoice/model/SendVoiceMessageRequest.java