Based on the provided comments, it appears that the caller with the number +61407074730 is likely a telemarketer or a scammer, as they are making missed calls without leaving a message. The fact that the calls are being made and then immediately hung up suggests that the caller may be using an autodialer to make a large number of calls. This behavior is consistent with unwanted or nuisance calls, which is supported by the "Nuisance" rating given by one of the users. Overall, the purpose of the caller appears to be to make unsolicited calls, potentially with the intent of selling something or phishing for personal information.
The number has been blocked after a missed call was received, which hung up after three rings.
The call went unanswered and no voicemail was received from the unknown number.