On ti, 2008-04-08 at 17:16 +0200, Tilman Baumann wrote: > Maybe CSD is billed like a voice call. I never used it, but i don't > remember any special charges for that.
Doubtful for the US "drop your pants and bend over, please" carriers' "minutes"; I presume the original poster was in this situation from his .edu account and mention of AT&T. Here in Finland we're mostly billed by minute (though there are _optional_ US-like plans), and CSD calls indeed cost pretty much the same as voice calls. I presume the situation may be similar in many other (esp. EU) countries as well, which is good for us if we want to do eg. those encrypted phone calls or cheaper international calls via VOIP/CSD, but doesn't help the original poster. > The Wikipedia article about CSD has some hints about running voice > modems via GSM too. > http://en.wikipedia.org/wiki/Circuit_Switched_Data A quick glance finds mostly mentions of 1st gen analog mobiles having been used with modems, and notably "At the same time, the speech oriented audio compression used in GSM actually meant that data rates using a traditional modem connected to the phone would have been even lower than with older analogue systems." -- Mikko Rauhala <[EMAIL PROTECTED]> University of Helsinki _______________________________________________ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community