Based on the provided information, it appears that the caller with the number +17179972940 is likely engaged in suspicious activities, possibly scams or telemarketing. The fact that they left no message and used a robo caller with a fake ID suggests that their intentions are not genuine. The mention of "robot" and "robo" in the comments also implies that the caller is using automated systems to make calls, which is a common tactic used by scammers and telemarketers. Overall, it's best to exercise caution when dealing with this caller.
A robotic voice claimed to be from Harrisburg, PA, but the actual location was likely somewhere else
Given the lack of a message and my experience, there is a strong likelihood that this is a telemarketing or scam call
The call seemed automated