CallManager trace files pulled from the CLI are normally .gz files; a .gzo file is one that was still open for writing at download time and may not open cleanly.

Checked 2026-09-22

If you get any .gzo files those are files that were open at the time you download them
Vendor
Cisco
Product
Unified Communications Manager
Subsystem
Trace file format
Deployment
on-premises
Region
not restricted
Release range
not stated; 2017 technote
Checked
2026-09-22

Sources

Cite this note

APA

WarmTransfer. (2026, September 22). CUCM CallManager SDL trace files: source note cucm-sdl-trace-files-gz-gzo-extensions. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-sdl-trace-files-gz-gzo-extensions

BibTeX

@misc{warmtransfer-claim-cucm-sdl-trace-files-gz-gzo-extensions,
  title  = {CUCM CallManager SDL trace files: source note cucm-sdl-trace-files-gz-gzo-extensions},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/cucm-sdl-trace-files-gz-gzo-extensions},
  note   = {Source note cucm-sdl-trace-files-gz-gzo-extensions, checked 2026-09-22}
}

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