This can be a significant benefit to companies looking
for more visibility into their networks and subscribers??™ activities.
This provides much more opportunity for monitoring systems. Instead of focusing
on the health of the signaling network, these systems need to evolve to support many
different functions. The newest trend is to use signaling data combined with subscriber
data to create business intelligence. Monitoring systems can and should play a very
central role in providing the necessary data and software applications for business
intelligence within IMS networks.
This is especially true in IMS because literally everything a subscriber does to communicate
is controlled through SIP and the IMS core. This provides an excellent opportunity
for the systems collecting SIP signaling to provide this information for business
intelligence as well.
Another area in which monitoring systems can play a vital role is in the collection of
billing (or charging) transactions. There are two areas where billing information can be
found. The first is within the SIP signaling itself. SIP signaling carries several headers
used to communicate billing information to various entities within the network.
The billing (or charging) information carried within the SIP headers is then used by
the various entities within the network to generate an actual charging detail record.
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