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DRNewcomb · 03-05-2006, 04:55

My experience is that almost all US carriers interchange SMS with almost all other US carriers. US GSM carriers also interchange SMS with their GSM roaming partners. Foreign carriers may be ignorant of US carriers with whom they have no roaming agreements (i.e. CDMA carriers). Same situation in Japan. SMS seems to work only with the WCDMA side of DoCoMo & Voda.

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DRNewcomb (Offline) Senior Member Prepaid Professionist Posts: 1,465 Join Date: 27 Feb 2004 Location: Mississippi, USA Country:	03-05-2006, 04:55 My experience is that almost all US carriers interchange SMS with almost all other US carriers. US GSM carriers also interchange SMS with their GSM roaming partners. Foreign carriers may be ignorant of US carriers with whom they have no roaming agreements (i.e. CDMA carriers). Same situation in Japan. SMS seems to work only with the WCDMA side of DoCoMo & Voda.