For Call recording you will need to integrate CUCM with an external Call recorder .The Recorder must interface with Cisco Unified Communications Manager SIP trunk to receive recording calls.Nice/Witness Recorders have been tested; Verint and other third-party vendors manufacture suitable recorders.
The following modes of call recording exist:
•Automatic recording
•Application-invoked recording
In automatic recording, the recording session automatically establishes when agent answers or initiates a call. The recording option is enabled per Line appearance from the DN configuration page.To enable recording of an agent, set the Recording Option in the line appearance of the agent to Automatic Call Recording Enabled or Application Invoked Call Recording Enabled.For more information on Recording and the required configuration, see the features guide.
Cisco Unified Communications Manager Features and Services Guide, Release 6.1(1) - Monitoring and Recording
http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/admin/6_1_1/ccmfeat/fsmr.html
