In an enterprise integrated
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scenario, the Unable to show "metadata-from": No such page "_space_variables"
is deployed before an IP PBX. The enterprise uses one or more trunks provided by the service provider to connect to the PSTN network.An
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deployed in the enterprise network provides the following benefits:- Call admission control to the enterprise network at the border.
- The enterprise IP network topology and endpoint characteristics are visible to the PSTN endpoint.
- Demarcation point for SP hand-off and troubleshooting purposes.
- QoS and codec selections are under control of the enterprise.
- Protection against DOS attacks against SIP.
- SIP normalization – normalizing SIP messaging on the network border or between two unrelated devices within the network that support SIP.
- Toll-fraud control point.
Overview
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