This feature should only be used in agreement with the ISDN service provider and the appropriate local legal authorities. It allows users with Can Trace Calls (User | Telephony | Supervisor Settings) set to trigger a malicious call trace of their previous call at the ISDN exchange. Refer to Telephone Features Malicious Call Tracing for further details.

• Currently, in Server Edition network, MCID is only supported for users using an MCID button and registered on the same IP500 V2 Expansion system as the MCID trunks.