1 ring, then hung up. No idea who it is.

Keep getting calls from this number. Have tried to call back and get "It has not been possible to connect your call"

no idea, who called me. i did answer last time but as soon as i answered they hung up so now i don't bother answering.

I keep getting this aswell got no idea but the call seems to originate in vietnam. Very Strange. I have raised to my Service provider to investigate

I received a call from this number - have no idea who it is

I was getting these for a while but stopped now I guess another debt firm.