When a cable service provider offers MGCP services to residential subscribers, typically they locate the Juniper Networks device and the call agent on their premises and intstall an Integrated Access Device (IAD), or set-top box, in each subscriber's home. The IADs act as a gateways for the residences
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Before You Begin |
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For background information, read Understanding the MGCP ALG. |
After creating zones—external_subscriber for the customer and internal_ca for the service provider—you configure addresses, then interfaces, and finally policies to allow signaling between endpoints. Note that although gateways frequently reside in different zones, requiring policies for media traffic, in this example both gateways are in the same subnet. Note also that because Real-time Transport Protocol (RTP) traffic between the gateways never passes through the device, no policy is needed for the media. See Figure 126.
Use either the J-Web or CLI configuration editor.
Figure 126: Media Gateway in Subscribers' Home
This topic covers: