The other party doesn't answer the phone. Unicom Xiao A helps. Can you know his phone number?

yes. If the other party doesn't answer the phone, Unicom will send a short message to remind you that a mobile phone number in a certain place has called at a certain time, and you can call and other information when it is convenient. Unicom's power-assisted service is a voice industry that provides users with services such as voice messages, situational mode settings, and AI assistants answering phones, and informs users of relevant information by SMS/core /APP push/third-party portal push.