This is possible through the RTMT application plugign, see the following description in the CUCM serviceability guide:-
Trace Collection
Use Trace and Log Central, an option in the Cisco Unified Communications Manager Real-Time Monitoring Tool, to collect, view, and zip various service traces and/or other log files. With the Trace and Log Central option, you can collect SDL/SDI traces, Application Logs, System Logs (such as Event View Application, Security, and System logs), and crash dump files.
Taken from this CUCM Serviceability Guide:-
http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/service/6_1_1/admin/satrades.html#wpmkr1094020
Also take a look at this information from the RTMT administration guide 6.1, particularly the section Configuring Trace and Log Central in RTMT.
http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/service/6_1_1/rtmt/rttlc.html#wp1104557
Hope this helps
Allan.
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