There was something about scanning local networks.

[As they speak, V gestures with a... paw, for M-Bot to lie down, which he does. The drone probably needs to recharge, but V can't say they feel the same.]

Perhaps someone who used to live in this area... left something playing?

[Strange as it is to imagine - who would live out here? Well, now, anyway.]

It is unlikely that whoever was speaking to us would be that same person, keeping that in mind.