It's entirely possible that the "crosstalk" happened way before the calls every made it into Skype's domain. Skype will have a PBX somewhere that bridges the ga

It's entirely possible that the "crosstalk" happened way before the calls every made it into Skype's domain. Skype will have a PBX somewhere that bridges the gap between Skypes IP protocol and the outside world of POTS and cellular calls.