Cisco IE-3000-8TC Administration Guide - Page 241
PCM Capture, Enable, Loopback, Disable Loopback, Cancel, Health Summary, Monitoring >
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PCM Capture Caution Do not add, update, or delete any of the internal gateway ports when you put a port in loopback mode. Adding, updating, or deleting a port can reset the internal gateway and will pull the port out of loopback mode. Note You can use the Gateway Loopback tab to initiate loopback for internal gateways only. It is not applicable for external gateways. Table 44: Settings on the Gateway Loopback tab Setting Port Connection Name Description Status Enable Loopback Disable Loopback Description Displays all the internal PSTN gateway ports. Displays the name of the gateway to which the port belongs. Provides a brief description of the port. Displays the status of the port, that is, up, down, or unregistered. To put a port in loopback mode, click Enable Loopback. After you click this option, you can either Disable Loopback or Cancel. After you put a port in loopback mode, the gateway to which that port belongs is unregistered. You can verify this through the Health Summary page. Tip You cannot enable loopback if the gateway for that port is not configured. When your service provider completes the testing and asks you to disable loopback, click Disable Loopback to recover the port from loopback. After you click this option, it changes to Enable Loopback. PCM Capture The Cisco Business Edition 3000 Administrative Interface helps to troubleshoot audio quality issues using PCM Capture. Table Table 45: Settings on the PCM Capture Tab, on page 222 describes the settings on Monitoring > Diagnostics > PCM Capture page. You can use the settings on the PCM Capture tab to enable or disable PCM Capture to collect PCM traces. For information on the limitations of PCM Capture, see the section Limitations of PCM Capture, on page 222 OL-27022-01 Administration Guide for Cisco Business Edition 3000, Release 8.6(4) 221
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