MakeUseOf Answers is a Q&A forum. Our community solves your questions about anything related to the Internet and computers. It's free. Ask A QuestionQuestions tagged "phone call" All questions Resolved Unresolved What app lets two people call each other without disclosing each others’ numbers? How can I play a custom audio file while muting call on Android phone? How to set a recorded audio as caller tune for Vodafone users? How to enable conference call on Android phone dialer? Can you help me trace a phone number in Pakistan? What Android app can add fake background noise to a call? How can I configure TruCaller for Windows Phone 8 to display caller information? Is there an Android app to call 1800 numbers and other US numbers for free?