"Telephone counselling" refers to a type of therapy or support where people can talk about their problems, concerns, or emotions with a trained professional over the phone instead of meeting in person. Full definition
A confidential telephone counselling service providing professional counselling and support for parents and those who care for children. (healthyfamilies.beyondblue.org.au)
I also provide convenient and confidential telephone counseling, psychotherapy and consultation services for individuals. (psychologytoday.com)