May be you can build an application which controls the background terminal of the Meridian. (This would be a serial connection to the M1)
This application sends background commands like: se mw 3000.
This could be a try.

Best regards

Hans

Andrew Kohlsmith schrieb:
Please keep responses to the list, so this can help everyone.

On Tuesday 01 August 2006 09:26, you wrote:

Thak you for you response. My interconection between Asterisk (Voicemail)
and my meridian is througth PRI T1, so the only stuff that i can't activate
is the light in the meridian digital phones, i understand the asterisk see
those phones like a external devices, but i don't know is somebody create o
modify the SIP MWI and generate TDM messages to meridian.


This isn't about modifying Asterisk to work with the Meridian. This is about the Meridian simply having no way to accept that information from an external trunk. There are VM message centers but they are extraordinarily limited and you can't give a unique one to every user, or even to a group of users. They're line-based. Similarly, you can buy an expensive NAPN or MCDN license which will allow the Norstar to see a PRI as an internal trunk line, but now you are running an undocumented and proprietary PRI signaling protocol called SL-1. It's what Norstar systems use to communicate with each other (imagine two Norstar systems connected together over a leased T1). We have no documentation on it, and Nortel is very likely unwilling to give us the information.

So, as I said, you are stuck using a Nortel ATA and an FXS port on Asterisk and using a hookflash *1 sequence to toggle it. Unfortunately the VM callback # will be the ATA's DN, so only one person at a time can access voicemail.

I spent some time digging into this last year, but came up without an acceptable solution. I may be forgetting or misremembering some of the details but the end result is the same: you can hack something into it but it's a shitty solution.

-A.
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