Whom would you call to reduce your telephone anxiety?

It's clear that sometimes we need to enter in contact with the real world through the telephone, and to reduce anxiety, you need a step by step approach, starting by small steps.

1st: it cannot be a therapist, who is already a trustworthy person
2nd: it cannot be an old friend or relative, same reason as 1st.

So, which information service, company, church, would you call, asking some meaningful information and what would you ask?