Cisco CallManager Serviceability
The Cisco CallManager Serviceability service supports Cisco Unified Serviceability and the IM and Presence Service serviceability GUIs, which are web application/interfaces that you use to troubleshoot issues and manage services. This service, which is installed automatically, allows you access to the serviceability GUIs. If you stop this service on the server, you cannot access the serviceability GUI when you browse into that server.
Cisco CDP
Cisco Discovery Protocol (CDP) advertises the voice application to other network management applications, so the network management application, for example, SNMP or Cisco Unified Operations Manager, can perform network management tasks for the voice application.
Cisco Trace Collection Servlet
The Cisco Trace Collection Servlet, along with the Cisco Trace Collection Service, supports trace collection and allows users to view traces by using RTMT. If you stop this service on a server, you cannot collect or view traces on that server.
For SysLog Viewer and Trace and Log Central to work in RTMT, the Cisco Trace Collection Servlet and the Cisco Trace Collection Service must run on the server.
Cisco Trace Collection Service
The Cisco Trace Collection Service, along with the Cisco Trace Collection Servlet, supports trace collection and allows users to view traces by using the RTMT client. If you stop this service on a server, you cannot collect or view traces on that server.
For SysLog Viewer and Trace and Log Central to work in RTMT, the Cisco Trace Collection Servlet and the Cisco Trace Collection Service must run on the server.
 Tip | If necessary, Cisco recommends that, to reduce the initialization time, you restart the Cisco Trace Collection Service before you restart Cisco Trace Collection Servlet. |