Alog handsets with message waiting

[chilly1234]

Hi I have a customer that has about 400 CWB200H handsets with message waiting lights,we are just about to upgrade/change from another system to the Avaya s8710 that im going to install however I cant get the message waiting lights to work any idea's?

 

[letman]

Check your message wiating indicator on page one. It should be set to led. If your sets have a neon light you will have to plug in a Tn755 power supply in your carrier to power them and also change the mwi to neon.