He had it right
He is using Asterisk to REPLACE the Octal, so it needs to be equipped with FXO Since most.all VM's should have multiple ports to the PBX, you probably will want to equip the Asterisk box with a Sangoma card with 2 FXO modules, for a total of four ports. This will allow the users to get their VM, the PBX to send calls to VM, and also allow Asterisk to tell the PBX to light the MW lights when a message is left.
VM programming to interface to the PBX can be a fun job.
You may want to look for a used Keyvoice VM system on eBay and save your Asterisk project to replace the PBX as well.

JMO

John Novack


Eric Germann wrote:
FXS cards generate ring (you connect a "station" to it and it rings).
FXO cards sink ring (they take ring from the office).
If the Octel needs ring (which it most likely does), you would need an FXS card to generate ring for it to answer. An FXO would take ring from the vmail server, which, in context, doesn't make a lot of sense (vmail doesn't call the PBX, the PBX calls vmail).
EKG

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*From:* [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] *On Behalf Of *Jeronimo Romero
*Sent:* Monday, February 05, 2007 8:03 PM
*To:* Asterisk Users Mailing List - Non-Commercial Discussion
*Subject:* [asterisk-users] asterisk server as a voicemail server for legacyPBX -- FXO or FXS???

Hey All,

I’ll be configuring an asterisk box to be the voicemail server to an old Merlin system which had an octel 100 voicemail server that is now dying.

My question is simple: do I need to stick an FXO card in the asterisk box? My logic is that if the Merlin Magix system is actually generating electrical current, then I would need to have an fxo card. Is this correct?

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