>not through SMS, but through some other system that takes over the whole screen - not sure what it is This sounds like it might be a so-called “flash” SMS. ht

>not through SMS, but through some other system that takes over the whole screen - not sure what it is This sounds like it might be a so-called “flash” SMS. https://en.wikipedia.org/wiki/SMS#Flash_SMS https://en.wikipedia.org/wiki/SMS#Flash_SMS