WhatsApp trick: This is how you can record calls on Android, iPhone By Image for representation. Photo: File. There are times when one has to take notes while speaking over the phone, especially when it comes to official calls or conducting interviews via WhatsApp. Under such circumstances, the ideal way is to record the call instead of going through the painstaking process of taking manual notes. For Android users According to India Today, if you are an Android user, chances are that you will already have a call recorder installed on your phone. You can use that to record both voice and video calls, given that your phone has the option of multitasking.