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ipoServiceNoFreeChannelsAvail alarm

Jeremy Boilard

Problem Statement

An S-Edition Primary Select build 26 system reports a Major service alarm with maint object ipoServiceNoFreeChannelsAvail. The equipment detail states: "No free channels were available" for an outgoing group ID. This indicates the system attempted to use an outgoing channel group but no channels in that group were available at that time.

Impact

Outbound service attempts using the affected outgoing group may fail or be blocked until channels become available. The condition may be temporary if caused by peak utilization, but it can recur if the outgoing group is undersized, misconfigured, or has unavailable channels.

Alarm

Major alarm; Maint Object: ipoServiceNoFreeChannelsAvail; Alarm Code: ACT; Event: ipoGenServiceErrorSvcEvent; Detail: No free channels were available. Outgoing group ID: <group-id>

Troubleshooting Steps

  1. Identify the affected outgoing group ID from the alarm details.
  2. Check current and historical channel utilization for the affected outgoing group to determine whether all channels were in use during the alarm window.
  3. Verify the operational status of channels assigned to the outgoing group. Look for channels that are administratively disabled, out of service, faulted, or otherwise unavailable.
  4. Review recent configuration changes involving trunk groups, route groups, SIP/TDM channels, licensing, or capacity limits that could reduce the number of usable outbound channels.
  5. Confirm whether the alarm is transient or persistent by checking the active alarm dashboard and alarm history.
  6. If the alarm occurred during a traffic peak, compare offered traffic against the configured channel capacity for the outgoing group.
  7. If only specific outbound routes are affected, verify routing rules and ensure traffic is not being forced into an undersized or unavailable outgoing group.
  8. If channels appear available but the alarm remains active, collect system logs, alarm history, channel status, and the affected outgoing group configuration before escalating to product support.

Resolution

Restore available capacity in the affected outgoing group. Depending on the findings, this may require waiting for active calls/sessions to clear, returning unavailable channels to service, correcting routing or group configuration, or increasing the number of channels assigned to the outgoing group. After corrective action, verify that outbound attempts complete successfully and that the ipoServiceNoFreeChannelsAvail alarm clears from the active alarm dashboard.