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Scenario -  Field Definitions

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Step 1

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Note

One unassigned ISDN Signaling port must be available for the ISDN application options to be displayed.

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Enter the scenario configuration details based on the endpoint selected.  Once completed, click Next to move to Step 3 (or Previous to return to the previous screen).

ISDN - Field Definitions

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Step 2 Configuration

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Port Type

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Specifies the physical T1/E1 port used for this Signaling Group. Valid option: T1 or E1.

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Hard-coded federated FQDN/IP for use with Microsoft Teams Direct

Connect: sip-all.pstnhub.microsoft.com

Routing: 

  • 52.112.0.0, with netmask 255.252.0.0
  • 52.120.0.0, with netmask 255.252.0.0

For more information, refer to https://docs.microsoft.com/en-us/microsoftteams/direct-routing-plan#microsoft-365-office-365-and-office-365-gcc-environments

Protocol

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Hard-coded value for protocol used with federated FQDN: TLS

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This example displays a ISDN PSTN ↔ Microsoft Teams setup.

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Step 3

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