A telephone conversation differs from a live conversation by the lack of eye contact. Therefore, we can perceive information only from the words and intonations of the interlocutor, and conversations with a young man have a number of restrictions on the topic.
Do not start serious topics in telephone conversations. It is better to discuss important issues in person, when the guy sees you and your attitude to your own words. By phone, you can make an appointment and announce a topic for an important conversation or hint that such a conversation will take place.
Be brave and confident. Even in a conversation on the phone, a young person can understand your mood: embarrassment, nervousness, fatigue. Remain calm and don't give yourself away. You can imagine that you are not talking with a young man you like, but with an old friend or even a girlfriend.
Do not fight over the phone and do not sort things out with a guy. If the conflict has already taken place, and you are still feeling agitated and resentful, it is better not to pick up the phone at all. You will not say anything worthwhile. And if he is just maturing, then invite the guy to meet and talk.
Stay friendly and polite. Be sincere, try to anticipate the young person's desire, while maintaining self-esteem.