Lucent / AT&T

AT&T / Lucent / Avaya

As a general rule, there are four possible integrations with Avaya / Lucent products.

Proprietary integration using in-band (DTMF) signaling. The Partner and Legend series is in this category.
Proprietary integration but VoiceBridge offers a solution to provide a non-proprietary integration using SMDI. See SMDI Integrations below.
No voice mail integration is available, but you can use supervised transfers and "dumb voice mail". Older Dimension 100 or System 25 systems could fall into this category. While this will work, transfers tend to be slow and the customer must understand the limitations before you install the system.
Adding voice mail to certain systems would be foolish and put your wallet at risk. The Merlin series presents special challenges but the new Merlin Magix works well.

The following integrations are available:

Legend with advanced integration & Merlin Magix: Legend provides full integration!

Partner with advanced integration: Partner II Release 3 and Partner Plus, Release 4 or higher

Partner without advanced integration: Partner Plus Version 3.0. (Version 2.0 does not allow the system user to retrieve messages from system phones)

SMDI Integrations: System 25, 75, 85, G1, G2, G3 and other AT&T/Lucent/Ayaya systems don't include advanced voice mail integration as part of the system. To obtain features like message waiting indication and the ability to forward an individual telephone to a specific voice mail box, you must use a 3rd party integration unit. Note that a VoiceBridge unit and a VoiceTrak unit together cost far less than an Audix system!

AT&T System 25 (and others) without SMDI / VoiceBridge Integration: It's possible to connect VoiceTrak to AT&T/Lucent/Avaya systems without advanced integrations - by using supervised transfers (R type mailboxes).