SCCP:UDTS
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Unitdata Service (UDTS)
A UDTS message is used in connectionless protocol Class 0 and 1. It indicates to the originating SCCP that a UDT message that is sent cannot be delivered to its destination. A UDTS message is only sent if the option field in the received UDT was set to return an error.
Example
Unitdata Message (UDT) with Return Message on Error
Unitdata Service (UDTS) with No Translation Error
