Sms With International Cards

[Przemolog]

Originally Posted by DRNewcomb

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.

Yes, in GSM world usually the following is true: roaming agreement <=> SMS interchange. For GSM <-> CDMA SMS interchange, I suppose that extra agreements are needed (and possible extra software for setting some kind of GSM/CDMA gateway).

In Nov & Dec 05 I made some tests of GSM/CDMA SMS interchange from Plus GSM, Poland (this operator offers sending SMS to some non-GSM operators in USA and Canada at regular international SMS rates - no surcharges for GSAM2CDMA "conversion").
I forgot to post the results :whistle:, however, they were not very satisfying.
Now it's a good occasion to tell a few words about this "experiment" (quotations are from PM).

Harryb (quotations are Harry's)
Plus GSM -> Verizon CDMA
"My phone received the message promptly"

Verizon CDMA -> Plus GSM
"I looked into why you did not get my SMS and found that VerizonWireless customers can send International SMS to only certain countries. Poland is not one of them. Reviewing the list I cannot see any logical pattern. Most of the western European countries are included in the list, but I could not find any of the Eastern European countries on it. Also no Russia and none of the former Soviet Republics. Most countries on other continents are included with a few exceptions."

DRNewcomb
Plus GSM -> Cellular South CDMA
"I've just sent it and received the delivery report 'Discarded' " (this MY message to DRN).
Cellular South CDMA -> Plus GSM
test not performed (PM got lost in the cyberspace) but I suppose the SMS wouldn't get through in this direction either...