This section gives a brief introduction to the Mobile Intelligent Network (MIN) handling capabilities of GSM systems. Mobile Intelligent Network (MIN) nodes can be added to a basic GSM network to provide value-added services such as Freephone and Personal Number to subscribers. GSM MIN nodes include:
• Service Switching Function (SSF):
An SSP acts as an interface between the call control functions of the mobile network and the service control functions of a Service Control Point (SCP). Ericsson's SSP is an AXE-based AM (SSFAM) and may be integrated within an MSC/VLR (recommended) or stand-alone.
• Service Control Function (SCF):
A SCP contains the intelligence of a MIN service or services. This intelligence is realized in software programs and data. SCP is also an AXE-based AM (SCFAM) and the recommended configuration is as a stand-alone node, accessible by all MSC/SSPs.
• Service Data Point (SDP):
An SDP manages the data which is used by a MIN service.SDP is a stand-alone node based on Unix.
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