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Network Connectivity - Inbound Calls Failing On PRI Gateways G100/G200/G400/G800, Outbound Calls Work

Network Connectivity - Inbound Calls Failing On PRI Gateways G100/G200/G400/G800, Outbound Calls Work

    When the Gateway immediately hangs up on inbound call and it shows channel is unavailable.

    1. Go to Configuration > T1/E1 > Port1 > Advanced Signaling > Idle Bearer Reset, set that to NO (this should be the default). Save T1/E1 Settings. Do this for each configured port.  

    Please note that there should not be any active calls when making these changes.

    1. If there is still an issue, try to disable FORCERESTART_UNAVAIL_CHANS on the same page, although it is less likely this is causing the issue.

    2. Reboot the Gateway if the problem persists.

    Note: This is a rare occurrence.