Here are some useful tips on the proper use of the phone:
• When calling a Muslim, you should first greet him or her with Assalamu ‘Alaykum. Moreover, you should start any phone conversation with Assalamu ‘Alaykum.
• You should use the phone only when necessary and avoid prolonged phone conversations, exchanging long stories and anything that does not correspond with the correct use of the phone.
• Ash- Sha‘bi narrated on the authority of Al-Mugheerah’s scribe that he said, “Mu‘aawiyah, may Allah be pleased with him, wrote to Al-Mugheerah ibn Shu‘bah, may Allah be pleased with him, asking him to write something for him that he had heard from the Prophet . Al-Mugheerah ibn Shu‘bah, may Allah be pleased with him, wrote to him, "I once heard the Prophet saying: ‘Verily, Allah The Exalted disapproves for you: talking nonsense [and gossiping],wasting your money and persistently asking too many [unnecessary] questions.’” [Al-Bukhari]
• You should put an end to improper conversations, flirtatious talk and prank calls by handling them decisively and firmly.