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ETSI ES 201 912
M00000744
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ETSI ES 201 912 Access and Terminals (AT); Short Message Service (SMS) for PSTN/ISDN; Short Message Communication between a fixed network Short Message Terminal Equipment and a Short Message Service Centre
standard by European Telecommunications Standards Institute, 08/01/2004
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The present document deals with two different protocols to provide the Short Message Service for PSTN/ISDN using a User Based Solution (UBS). For both protocols it specifies the protocol layers used to transmit Short Message Information between Short Message Terminal Equipment connected to PSTN/ISDN and a Short Message Service Centre. It is up to the service provider to choose which protocol to use.It does not specify the dial-in systems and the architecture of the short message service centres.