D-IM-CSI – Dialled – IP Multimedia – CAMEL Subscription Information
D-IM-CSI is used in a similar way to the O-CSI. The main difference is the O-CSI has a TDP List which when triggered initiates a dialogue with the gsmSCF and IM-SSF. The D-CSI on the other hand always uses DP2 and it is this criteria associated with the DP that dictates which gsmSCF the IM-SSF will initiate a control dialogue with. Thus by setting multiple D-CSI it is possible to trigger a dialogue with one of a number of gsmSCF.
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