Yes, even if the phone doesn't have a phone bill, as long as it can connect to a Wi-Fi network, it can still communicate through various apps. With a Wi-Fi connection, you can use a variety of communication apps, including chat apps, voice calling and video calling apps. At the same time, it is also possible to access the Internet via Wi-Fi, access various websites and applications, conduct information inquiries and other online activities. Therefore, even if the phone does not have a phone bill, it can still use Wi-Fi for various communications and network activities.