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Topic # 8895 6-Aug-2006 03:04
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Im currently over here in Japan and AU uses the CDMA standard.  They have some super cool phones made by Casio Kryocera and Sanyo.  It would be much  better for telecom to try to aquire these handsets as they offer much better style screen and features than those offered elsewhere!  OH I LOVE THE PHONES HERE!

(By the way althought the phones are very cheap here calls cost the same as new zealand and international calls are REDICULOUSLY EXPENSIVE!)

Anyone know any information about Japanese CDMA?

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Reply # 43345 6-Aug-2006 07:02
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WCDMA is the growth in Japan

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  Reply # 43347 6-Aug-2006 09:46
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KDDI is the second largest operator in Japan with 23M customers using an EVDO Rev0 network. KDDI are launching an EVDO RevA network. The largest operator is NTT DoCoMo with 26M customers and they use an 800MHz FOMA (or WCDMA network). EVDO has grown faster than WCDMA in Japan.

Now back on topic... The reason that you can not just connect an Japanese CDMA phone onto another network is because of the frequencies used. The Japanese decided to make the transmit and receive frequencies the reverse of any other CDMA network operator.

For the record KDDI have over 80 EVDO RevA devices from a number of different Japanese manufacturers including Kyocera, Casio and Toshiba.




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  Reply # 44159 16-Aug-2006 21:21
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Other issues you would have is that you cannot just connect a phone to the telecom network, it needs to be approved internally then have its ESN generated on the network

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  Reply # 44166 16-Aug-2006 22:02
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mikeox69: Other issues you would have is that you cannot just connect a phone to the telecom network, it needs to be approved internally then have its ESN generated on the network


And for some phones a customized ROM is also created, or atleast the existing one is translated into english.




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Reply # 44180 16-Aug-2006 23:14
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SPC's can also be different, and would make it hard for Telecom Call Centers, and Dealers to program your handset, even if Telecom sell the same model here.

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  Reply # 44182 16-Aug-2006 23:16
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mikeox69: Other issues you would have is that you cannot just connect a phone to the telecom network, it needs to be approved internally then have its ESN generated on the network


Otherwise know as a PTC, or Permit to Connect.

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  Reply # 44188 17-Aug-2006 01:43
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Thank you all veyr much for your replies. 

Its a shame that there are so many differences in standards throughout the world.  But I guess the Japanese mobile industry has domestically flurished because of it. 

In terms of fashion Big is definately in over here for mobiles.  Big put definately not ugly.  Where as the big samsungs seem rediculously big and ugly, the smooth square lines of the Japanese models really look a treat (and man the screens are gorgeous). 

I just bought myself a sharp SH904... havnt really found a fault with it except for the size!  I paid only $300 dollars for it to (with no contract)...  Shame I wont be able to bring it back - Locked to Japan

Thank you once again for your reolies

Tim

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  Reply # 44211 17-Aug-2006 12:01
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This is quite a contrast to my wife's experience.  She bought a GSM phone in Shanghai and despite my reservations we got it connected over here with Vodafone without any problems - even managed to get all the displays, etc to work in English :-)


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  Reply # 44213 17-Aug-2006 12:07
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Thats because GSM phones will generally work anywhere in the world as long as they are unlocked. Different story from CDMA where each phone has to be customised to work a specific network

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