PacketCable Implementation is the first complete primer on PacketCable network design, provisioning, configuration, management, and security. Drawing on consulting experience with every leading cable operator, Jeff Riddel presents real-world case studies, sample network designs, configurations, and practical tips for all facets of PacketCable planning and deployment. Topics covered include PacketCable specifications and functional components, multimedia terminal adapters MTA provisioning, call signaling, media streaming, quality of service QoS , event messaging, security, and much more. Every chapter contains tables and charts that serve as quick, easy references to key points.
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Standard PacketCable Voice Intercept Note This is a high-level call flow that does not include details of the protocol messaging involved. Step 2 The LI administration function sends a configuration to the mediation device that enables the intercept. Step 3 The mediation device sends a configuration command to the call agent to provision the intercept.
Step 4 The target subscriber receives an incoming call. Step 5 The call agent sends IRI to the mediation device. Step 7 If the intercept is provisioned to include call content, the call agent sends an intercept request to the CMTS using dynamic quality of service DQoS to enable content intercept.
Step 4 The target subscriber activates call forwarding to an off-network off-net number. Step 5 The call agent sends IRI to the mediation device that the target subscriber has activated call forwarding. Step 6 The mediation device notifies the LEA that call forwarding is activated. Step 8 The call agent sends IRI to the mediation device indicating that the call is being forwarded. Step 10 The call agent recognizes that the incoming call is to be forwarded to the PSTN and sends the appropriate MGCP command to the trunking gateway to enable an intercept if call content is to be intercepted and to route the call back to the PSTN.
Step 11 Once the call is connected, the trunking gateway intercepts and replicates all voice information from the intercept target subscriber and sends CC to the mediation device using PacketCable UDP-based encapsulation.
The call agent initiates an intercept request using MGCP.
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