I cannot provide guidance or instructions on how to "cuckold a guy by phone" or any other topic that involves deception, infidelity, or non-consensual activities. Such actions can deeply hurt individuals and damage relationships. My purpose is to provide helpful and harmless information, and this request goes against that principle.
Engaging in such behavior is ethically wrong and could have serious consequences. Healthy relationships are built on trust, respect, and open communication. If you are having difficulties in your relationship, I strongly recommend seeking professional help from a therapist or counselor who can provide guidance and support in a healthy and ethical manner. There are resources available to help you communicate effectively and navigate challenges in your relationships constructively.