Check out STIR/SHAKEN: https://transnexus.com/whitepapers/understanding-stir-shaken/ https://transition.fcc.gov/cgb/Robocall-Strike-Force-Final-Report.pdf
For what it's worth, American Express Fraud Department comes up at "Spam Risk" through my provider. There are "recommendations" for labels. I do believe the carrier is setting the labels and I would reasonably surmise they are the source. It could be prior use of an assigned number. Or not. I am not aware of how to get the labeling of a number fixed. Anyone? YMMV. Best, -M< On Thu, Oct 31, 2019 at 8:24 AM Ca By <cb.li...@gmail.com> wrote: > > > On Thu, Oct 31, 2019 at 6:05 AM David Funderburk <df...@globalvision.net> > wrote: > >> One of our customers office number is coming across as 'Survey Call' on >> T-Mobile cell phones. I know with certainty it's with 'T-Mobile' phones. >> I don't have another contact on another network that I know I can try. How >> do we get that fixed? >> >> Thanks for any suggestions! >> > > Probably number spoofing and has nothing to do with T-Mobile > > > https://www.npr.org/2019/06/06/727711432/do-i-know-you-and-other-spam-phone-calls-we-can-t-get-rid-of > > > > -- >> Regards, >> >> David Funderburk >> GlobalVision >> 864-569-0703 >> >> For Technical Support, please email gv-supp...@globalvision.net >> >> GlobalVision is a communications company that provides services which >> includes Internet, internal and external networks with over 25 years >> experience. With our Zero Downtime strategies we help companies increase >> up-time and decrease lost productivity and costs. >> >> -- >> This message has been scanned for viruses and dangerous content by >> *E.F.A. Project* <http://www.efa-project.org>, and is believed to be >> clean. >> >
