topic Re: CUCM 11.5- RTMT SDL output is not readable in Unified Communications Infrastructure

CUCM 11.5- RTMT SDL output is not readable

ORC_NOC035 — Tue, 19 Mar 2019 20:04:12 GMT

When i take the CUCM logs from RTMT. The output when it is opened in any of the applications like Notepad, Notepad++, wordpad, the debug output comes in abnormal format. Screenshot attached.

Re: CUCM 11.5- RTMT SDL output is not readable

Georgios Fotiadis — Thu, 18 Jan 2018 08:41:35 GMT

You should first unzip the SDL logs, as they are in .gz format once downloaded through RTMT.

Re: CUCM 11.5- RTMT SDL output is not readable

mm322 — Sat, 14 Feb 2026 14:40:49 GMT

Encountering the same issue with sdl pulled from CUCM 15.

SDL files format is txt but they show just like the screenshot provided by ORC_NOC035.

Any clue?

Re: CUCM 11.5- RTMT SDL output is not readable

mm322 — Mon, 02 Mar 2026 10:09:25 GMT

Opened a TAC case which was solved as follows:

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwm44367

Conclusion - The workaround is mentioned below-

-Don't select the uncompressed log file check box then files will be downloaded in readable format

-Use RTMT plugin from 15su2 with lower versions of 15 ex. 15su1

Hope this helps those who may encounter this issue.