If it's a group message I believe it's carried over the mms channels so it could be a bug in the mmsc.
There are so many layers involved that it's hard to know but I'd guess it's a caching bug somewhere along the line.
Source: telecom PM for years.
There are so many layers involved that it's hard to know but I'd guess it's a caching bug somewhere along the line.
Source: telecom PM for years.
It's most likely to be a bug on one of the MMSCs, but could be a problem elsewhere if the message is getting corrupted in flight. Alternatively, it could be routing issue in a certain set of numbers.
Yes MMSC errors sound right. Or wacky IMS stuff.