Where are the missed call information stored in Communication Manager 6.X environment? Are they stored on the phones themselves, or on the callmanager servers? One way to get it from callmanager would be tracking zero duration calls in the CDR database, but i wanted to know if there is an easier accessible way to access them. Also one related thing is that, how should one proceed to be able to send email notifications to users for the missed calls they receive? There is no such feature available out of the box for CUCM 6.X as far as i know.