This World Is Taboo

This World Is Taboo (1961) by Murray Leinster is a science fiction novel.
Excerpt from the book:
He called Murgatroyd, placed him before the communicator, and set it at voice-only transmission. This was familiar enough, to Murgatroyd.
He'd often seen Calhoun use a communicator.
"Chee!" shrilled Murgatroyd. "Chee-chee!"
A startled voice came out of the speaker: "What's that?"
"Chee," said Murgatroyd zestfully.
The communicator was talking to him. Murgatroyd adored three things, in order. One was Calhoun. The second was coffee. The third was pretending to converse like a human being. The speaker said explosively, "You there, identify yourself!"
"Chee-chee-chee-chee!" observed Murgatroyd. He wriggled with pleasure and added, reasonably enough, "Chee!"
The communicator bawled, "Calling ground! Calling ground! Listen to this! Something that ain't human's talking at me on a communicator!
Listen in an' tell me what to do!"
Murgatroyd interposed with another shrill, "Chee!"