Local Gateway (LBO)¶
This call type occurs in the following situations for an endpoint in a site that has Local Gateway (Local Breakout):
- When the endpoint places a call to reach a destination in the PSTN through the Local Gateway
- When the endpoint receives a call from the PSTN through the Local Gateway
The Local Gateway is used to connect to the PSTN locally. In this case, it must be possible on a per-call basis to select the Local Gateway breakout and there must be selectable per-site routing through the Local Gateway (that is, International, National, Service, and so on).
The call type includes:
- SIP/SCCP signaling traffic for the endpoint between the endpoint and Cisco Unified Communications Manager
- SIP signaling traffic for the Local Gateway between the Local Gateway and Cisco Unified Communications Manager
- Media traffic between the endpoint and Local Gateway
Off-Net Call (Local Gateway)
Usage |
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Accessibility | User can perform Off-Net call from any endpoint registered with Cisco Unified Communications Manager |
Usage Example | User can dial any PSTN number from their phone |
Default Configuration |
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Configuration Choices |
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Redundancy | Available to users without restrictions |
Survivability | Available to users in fallback mode, with the following restrictions:
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Endpoint Types Supported |
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Examples | Case 1: Using Trunk Transformation CSS to convert DN to DDI
Phone A (DN=8 300 1234; External Mask=+14085289001)
Dial 9 12134225001
Local GW Trunk {uses Called, Calling, Redirecting and Connected
Transformation CSS}
Outbound from CCM - CDPN = +12134225001; CGPN=+14085289001
Inbound Connected Number +12134225001
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