Am Sa 31. Mai 2008 schrieb Mike Montour: > Kevin Dean wrote: > > > I'd like to reconfirm this before reporting, or at least kill my > > theory before reporting on it and creating a false lead. It seems that > > the SIM itself is important. > > Two likely factors affecting GSM buzz are: which band it's using (850 or > 1900), and the transmitted signal strength (how far it is from the > tower). If you had SIMs from different carriers I could easily see these > factors being different. I can't think of a reason that two SIMs from > the same carrier would differ, except for randomness in which tower it > happened to use. > > It looks like one of the 'Engineering Mode' AT commands can at least > report which band you're on and the base-station ID. There is also a > "transmit power" field listed, but when I tested it a minute ago it was > always 0. > > http://wiki.openmoko.org/wiki/GTA01_gsm_modem#Serving_Cell_Information_.282.2C1.29
you read this field during a call when actually transmitting audio (NO silence)? For the rest: ACK /j
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