There is a list of icons in the left side of the softphone. The icon 
shows the list of call logs. Click on log icon to find all kind of logs.
- Click on the log icon
from the icon bar. Now, you will see all logs along with the day/date of the call - Click on Missed calls. Now, you can see the list of missed calls
- Click on Inbox to check your received messages
In All Logs, each type of logs are symbolized by
- Incoming received calls :
- Outgoing calls :
- Missed calls :
#Note: You can make a call back to the contacts listed in the logs also. For this,Click on the call button 
on the right most side of the log