Any modern GSM phone, certainly. I had a few phones in the late 90s/early 2000s which could not do so (an Alcatel, an Ericsson, and a Sony), although it was pre

Any modern GSM phone, certainly. I had a few phones in the late 90s/early 2000s which could not do so (an Alcatel, an Ericsson, and a Sony), although it was pretty trivial to notice the garbled characters at the start of an SMS and wait for a second/third incoming SMS :) I wonder whether the GSM spec got updated, or an RFC-style process took place, or simply that one phone manufacturer implemented the functionality in a sensible manner and the rest followed?