public String getNumberSelectionBehavior() {
        return this.numberSelectionBehavior;
    }
<p>
The preference for proxy phone number reuse, or stickiness, between the same participants across sessions.
</p>

@return The preference for proxy phone number reuse, or stickiness, between the same participants across
        sessions.
@see NumberSelectionBehavior
aws-java-sdk-chimesdkvoice/src/main/java/com/amazonaws/services/chimesdkvoice/model/ProxySession.java