Wiktionary
phone home
vb. 1 (context intransitive literally English) To make a telephone call to one's home. 2 (context intransitive informal English) To contact a remote service for instructions, identification, etc.
Usage examples of "phone home".
He was told he wouldn't need to go home to get his bag, that was being done, and no, it would not be suitable for him to phone home at this moment, but it would be explained to his wife that he had been called away in a hurry.