Basic Tips for CUCM Troubleshoot & Verification

This thread focuses on the basic troubleshooting of those simple problems arising from install & initial setup, system configuration, daily maintenance tasks etc. Monitoring TFTP / SFTP / FTP / Signaling events Whenever you upload phone firmware or upgrading package through SFTP / FTP / TFTP, to verify if the uploading is in progress, you …

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Database Communication Error – CUCM

Background Info& Problem Description: CUCM 8.6.1.20000-1 Installed on VMware machine, up and running perfectly. successfully shut down CUCM under CLI by issuing command “utils system shutdown”, and the VMware host is powered off automatically. power on CUCM VMware host again and login CUCM Admin webpage, it fails with error message “Database Communication Error”. Possible Causes: …

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Cisco CUCM Trace Collection using RTMT

CUCM Trace Types & Prerequisites for Trace CollectionTrace Types: There are 2 kinds of trace to collect for CUCM troubleshooting; SDI (System Diagnostic Interface) and SDL (Signal Distribution Layer).SDI Trace: mostly used by general voice engineers for troubleshooting the majority of CUCM issues. Plus, it is easier to understand than SDL.SDL Trace: consists of large …

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