Answer:
All options are correct
Step-by-step explanation:
For a telephone call to be effective, it is necessary to introduce three points, where you must name the person you are calling, identify yourself and identify the reason for the telephone contact. It is ideal to avoid phone etiquette, as a clear and objective call will retain more attention and be more efficient.
If you are unable to communicate with the necessary person, it is ideal that the messages left in the voicemail are complete for the perfect understanding and identification of the reasons and how the person can return the contact if necessary.
In a phone call being professional and courteous is essential, through the tone of voice and cordiality of the attendant the attention will increase and the objectives of the call are more likely to be achieved, so throughout the call until its close, education must be the basis, because in addition to being necessary, the professional is a representative of the company that is calling, so ethics, education and cordiality are essential in any professional connection.