[dasickis]

Correct. Dogs will vocalize and use touch with one another but the buttons are exclusively (at least from what I've observed) used for communicating with people. Though dogs & cats have specific vocalizations for speaking with people. Though we're now seeing vocalizations in new species that we didn't expect such as plants[1] & turtles[2].

1. https://www.smithsonianmag.com/smart-news/scientists-record-... 2. https://www.npr.org/2022/10/31/1132951238/what-sound-does-a-...