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A comment on Telnet BBS Guide. Parent comment

Re:Telnet BBS Guide by xenophonf on Sunday November 21, 2021 @10:59AM (#29297132)
Fax connections over GSM required a special (read: expensive and inefficient) circuit-switched data service that was limited to 9600 bps, at least here in the U.S.A.:

http://navasgroup.com/attwireless/gsm_data.htm

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Re:Telnet BBS Guide by anyfoo on Sunday November 21, 2021 @04:40PM (#29300026)
Same in Europe, HSCSD and all. Though at the time, I thought my Nokia 6150 was really "modem'ing" and the 9.6kbps were because GSM compression and available bandwidth would obliterate anything else, but nice to learn after all these years that it was actually digital and the endpoint with the actual modem was somewhere in the network.
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