Based on the provided information, it appears that the caller with the number +61948505428 made an unsuccessful call to an individual who did not answer due to unfamiliarity with the number. The call was made at 6:32 pm on September 14th, and no message was left, which suggests that the caller may have been trying to reach the person for a specific personal or business purpose. The fact that the call was not answered and no message was left implies that the caller may not have been a telemarketer, as they typically leave messages or try to contact the person again. Overall, the identity and purpose of the caller remain unclear.
I didn't pick up because the number was unfamiliar; they called at 6:32 pm on 14/09 and left no message.