Our Technical team can set up a program to your phone which would send a different ring signal to your phone so that it would ring differently for each line - allowing you to differentiate between each incoming call.
If you can please contact our Support Helpdesk to provide us with further details we can get this set up.
You can also see the name of the line displayed on the phone's LCD display - please click here if you need to re-name a phone line so that you can clearly see a different name displayed for a line.