Regarding CDR reports

Hi Everyone,

              I am using CUCM 8.6 in my network with E1 PRI in Voice Gateway . Now when i am making outgoing PSTN calls then all calls details are stored in our Call Detail Records . My query is , i need to make outgoing calls but it shouldn't be tracked in CUCM CDR reports, whether its possible for only one VOIP ?. So Please help me out to solve this issue. 

Thanks.