Call information can not be obtained from CCM MIBs.
CISCO-CCM-MIB does contains information about CCM registrations, route patterns etc., NOT the call information
* First we need to get the interface descriptor for WS-X6608 from IF-MIB and Entity and Chassis MIB.
* Call information through a specific T1/E1 (refer ifDescr) can be found from
CISCO-POP-MGMT-MIB (Ex: cpmActiveDS0sHighWaterMark for DS0 configuration)
even, we can get active call information via CISCO-VOICE-DIAL-CONTROL-MIB and DIAL-CONTROL-MIB.
If the call type is ISDN MODEM, CISCO-CALL-TRACKER-MIB provides information about
Active calls and WaterMarks.