AT&T Merlin 206 Manual page 11

8. Message Lamps
Call into the Classic Mail using an outside line
Leave at least a three second message in an initialized Regular mailbox
Verify that the correct message lamp illuminates
Delete the message from the mailbox
Verify that the message lamp extinguishes
Repeat for each initialized Regular mailbox.
Troubleshooting
If none of the message lamps work, check to make certain that Classic Mail is configured for the
correct Control Unit type and software package. Confirm that Classic Mail Telephone Emulation jack
#1 is connected to Merlin Voice Terminal port 10. Also confirm that the Merlin Control Unit has
Feature Package 2 and that the cartridge is firmly seated in its' socket or that it is an 820D or 820D2.
Next connect a 34 button display set to Voice Terminal port 10. The 34 button display set will confirm
the contents of each programmable key related to port 10. If the keys do not match the template for
an attendant's intercom (see page 19 or page 22 for templates), reprogram the keys to conform with
the template. After confirming the correct programming of port 10, verify that each intercom
message lamp can be turned on and off manually from the 34 button display set. If you can't turn the
lights on and off manually, it is likely that the feature cartridge is bad.
If the message lamps work on some phones and not others, follow the same procedure to confirm the
Classic Mail hardware connection and Merlin port 10 progmmming. If an intercom message lamp
still will not illuminate, the lamp may not be functional. Change the Voice Terminal set. If. after
changing sets, the lamp will not operate, the Merlin voice temninal port is probably bad.
System Reference Guide - Page 108
Fast Track: 6 - 6
Classic Mail Installation Package - Page 11