phone tree
noun /ˈfəʊn triː/
/ˈfəʊn triː/
(North American English)- an automatic phone system in which callers select options in response to recorded questions, so the system can direct them to the right person or department
- Users had to navigate an elaborate phone tree before reaching a counsellor.
- a list of the names and phone numbers of the people in an organization, arranged in a way that shows who should call whom in case of an emergency, etc.