Yes you can, and I have done with DoCoMo and Softbank, so you can use
any handset you want with the SIM card of Japanese carriers.
The only problem is the inability to use packet-switched network of the
carriers since the GPRS setting is not published.
Other possible problem is that I believe it's illegal to use radio
emitting device in Japan that is not certified by the regulating body in
Japan, except for ISM bands and low power radio.
Pada Sun, 07 Oct 2007 16:44:41 +0900
si ".~* Greg Conquest *~." <conquest_at_spamcop.net> bilang:
> So, if one of OpenMoko's successors to the Neo1973 has a wCDMA or other
> Japan-compatible radios, how would one use it with the carriers here?
> Buy a simple phone from SoftBank or au or docomo just for the SIM card
> and access plan?
> We can't buy individual SIM's and carrier contracts here in Japan, can we?
> Gerhard Fasol wrote:
> > OpenMoko according to my information has a GSM radio/modem
> > only - see below. Japan has several different and independent
> > radio networks (around 7-8 depending on how you count)
> > but none of them is GSM - therefore a GSM radio-based phone
> > like OpenMoko will not connect in Japan.
> > If you are looking for "smart phones" which work in Japan,
> > there are Symbian phones and MS-Windows mobile phones.
> > you can also use JAVA programming.
> > Or you can pursuade OpenMOKO to move from "legacy"
> > GSM and add wCDMA or HSDPA radios
> > Hope this helps
> > Gerhard
> > | GSM/GPRS
> > | The GSM (including GPRS) modem is Texas Instruments Calypso based.
> > |
> > | * Connected to: S3C2410 UART1 (full-uart, RxD, TxD, CTS, RTS), /
> > dev/ttySAC0 in userspace
> > | * PM Driver: https://svn.openmoko.org/trunk/src/target/kernel/
> > patches/gta01-power_control.patch
> > | * Accessible GSM/GPRS antenna jack (if battery cover is removed)
> > |
> > | CALYPSO digital baseband
> > | Unfortunately we cannot provide many details on the GSM chipset due
> > to very tight NDAs.
> > | However, this is not neccessarily required, since it interfaces
> > using a standard UART
> > | serial line with the S3C2410. On that interface, GSM 07.05, GSM 07.10
> > | and other standardized protocols are used.
> > | TWL3014 analog baseband
> > |
> > | Product Homepage: TWL3014
> > | TRF6151 RF Transceiver
> > |
> > | Product Homepage: TRF6151
> > | Quad-band support
> > | GPRS Class12/CS4
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Arnold P. Siboro (asiboro_at_maltech.jp)
"A lie can travel half-way around the world while truth puts on its shoes."
-- Mark Twain (1835 - 1910)
Received on Sun Oct 7 17:44:33 2007