"Tony" == Tony Finch <dot(_at_)dotat(_dot_)at> writes:
>> My, what a bunch of parvenus. SIP got it from SMTP, SMTP got it from
>> Telnet. Back in the 1960s we all used <CR><LF> because on a
>> mechanical model 33 or 35 Teletype, CR really returned the carriage,
>> LF really advanced the platen, and you needed both. I first ran into
>> CR/LF on a PDP-6 in about 1968, but I know it wasn't new then.
Tony> Dates back to 1930s teleprinters, I think.
Since they were "tele"-printers, it seems obvious why *SIP* must retain
it for "tele"-phony :-)