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Description / Abstract:
General
The Higher Layer Protocol Data Unit field in the R-DATA Unit
information element is used to carry the Short Message Service
(SMS) Cellular Messaging Teleservice (CMT) messages when the Higher
Layer Protocol Identifier indicates Point-to-Point SMS.
It should be noted that network support for CMT operation is
beyond the scope of this document and references to the Message
Center are only provided to aid in describing the support of CMT
operation over the air-interface.