I have received multiple calls and voicemails from this number over a 12 month period on my work mobile. It sounds like an older lady who is moaning into the phone as if she is being hurt and also sounds like she is mumbling in mandarin.First time we received this call it was extremely upsetting and we were unsure what to do. I then received calls sporadically over a 6 month period. I hadn't receive a call for 4-6 months as I had called back on her number at that stage and said I was going to call police, she played stupid but I didn't get a call until the other night. Again I said I was going to call the police if she kept calling and she abruptly stopped and started to apologize insisting she wouldn't call back on my number. Either a scam of some sort or a serial nuisance.