Someone called Betty Low

Reader's Digest 2月号の記事 'Life in these United States' からの引用です。
SCENE: Mom texting her daughter.
Mom: I think I keep getting messages or missed calls or something.
Me: From who?
Mom: Someone called Betty Low?
Me: Um, battery low?
Mom: That's it!
言葉を発する装置が増えてきましたが、進歩したのかどうかは疑問に感じる時もあります。