2.22 vSTP Generated UDTS Routing

A UDTS service message is an SCCP connectionless message. It is utilized when a UNITDATA (UDT) message is undeliverable and the message originator has requested a delivery report. A UDTS message is only sent if the option field in the received UDT was set to return an error.

vSTP supports the routing of vSTP generated UDTS messages, based on Originating Point Code (OPC) of the incoming SCCP request or message. This provides an additional capability to the existing vSTP functionality wherein UDTS response messages generated by vSTP can be routed to originator, based on OPC of incoming UDT Message.