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Home > Forums > Wiring Closet > Phone Systems > Mitel Networks solutions Forum

3300 ASU II and Aastra MWI Lamps

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RichS1023 (TechnicalUser)

25 Apr 12 16:55

Has anyone gotten the voltage based MWI lamps on an Aastra (formerly Nortel) M8314 analog set? We have a large customer site where we replaced a Nortel Opt. 61C PBX with a new Mitel 3300 Mxe and have not been able to get any of the customer's 8314 set MWI lamps to light. I have already checked the analog ONS / OPS circuit descriptors and Class of Service Options to make sure that they are correct. Any ideas?

bobcheese (TechnicalUser)

25 Apr 12 18:46

what is the min voltage to light the msg waiting on the phones? ASU II works at 90v for MSG waiting.

LoopyLou (TechnicalUser)

26 Apr 12 8:23

So we can assume the MWI works on other analog sets but doesn't on the Aastra?

I'd tell you a UDP joke but I'm afraid you won't get it. TCP jokes are the best because you always get them.

RichS1023 (TechnicalUser)

7 May 12 8:44

Bobcheese, It's supposed to be 90Vac to trigger the light but it's not working. The light does flash, however, in synchronizaqtion with rining voltage being applied.

LoopyLou, It works with a generic (Cortelco, I believe) 2500 set with a message waiting lamp and an Aastra 9316, but not with an Aastra 8004 or 8413. These are the sets we tested with so far.

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