I hardly ever get international spam calls. Nowadays they seem to mostly come from domestic (Dutch) numbers in the range reserved for mobile phones. When answering the line is silent for two or three seconds (a lot of internet round-trips to somewhere in Asia, I imagine) before hearing call center background noises and a heavily accented English voice saying Hello and trying to pronounce my name. At which point I hang up, so I have no idea what comes after that. :-)