My first thought was yes, but I have been wrong a lot lately, so I looked it up, this is what I found:
INTUITY AUDIX LX INTEGRATION SUPPORT STATUS MATRIX
Config Note # Release Status PBX Integration Type Notes
CERTIFIED GA Integrations
9516 B 08/02 AVAYA™ MERLIN Magix® / MERLIN Legend® Mode Code (In-band)
9514 10/24/02 AVAYA DEFINITY® G3 / ProLogix C-LAN
PLANNED Integrations – MUST BE TESTED AS BETA SITE
9509 Draft AVAYA DEFINITY ONE® & AVAYA™ IP600 /ProLogix Mode Code (In-band)
9513 Draft AVAYA DEFINITY® S8700 / S8300 C-LAN
9508 Draft AVAYA PARTNER® ACS, Partner II & Partner Plus Mode Code (In-band)
9505 Draft Ericsson MD-110 RS-232 (Proprietary)
9524 Draft Fujitsu 9600 RS-232 (SMDI/Proprietary)
9503 Draft Mitel SX-200D/200 Light Mode Code (In-band)
9526 Draft Mitel SX2000 DMI-4/Mode Code DMI-4 must be purchased directly from vendor
9504 Draft Nortel Norstar - VMI Mode Code (In-band)
9506 Draft NEC NEAX 2400 Series 6000 ICS RS-232 (Proprietary)
9507 Draft NEC 2400 series 5200 RS-232 (Proprietary)
TBD Draft NEC 7400 RS-232 (Proprietary)
9511 Draft Nortel DMS100/SL100 RS-232 (SMDI)
9517 Draft Siemens Hicom 300 ECS Mode Code (In-band)
9512 Draft Siemens Hicom 150 E Mode Code (In-band)
INTUITY AUDIX LX INTEGRATION SUPPORT STATUS MATRIX
9510 Draft Lucent Centrex 5ESS RS-232 (SMDI)
9525 WIP Nortel Norstar - DMI DMI-4/Mode Code DMI-4 must be purchased directly from vendor
9521 WIP NEC 2000 IVS RS-232 (Proprietary)
9522 WIP Cisco CallManager RS-232 (SMDI)
9530 WIP Cisco CallManager & VG248 RS-232 (SMDI)
9522 WIP Cisco CallManager RS-232 (SMDI)
PBX Integrations that will NOT be supported by Avaya on IALX
Nortel Meridian 1 / Digital Station Interface (VBPC)
Nortel SL1
DEFINITY® 1, 2, 3 / DCIU
Hicom 300 E (North America w/either Rolm Phone or OptiSet)
Hicom 300 (predominently sold in Europe)
Siemens Rolm 8000/9000
Siemens Rolm 9751 (9005 / 9006 sw) / Digital Station Interface (VBPC)
Comdial
Protocols NOT Supported by Avaya on IALX
Euro ISDN
DPNSS
QSIG
I would still say yes, but it looks like it will be considered a beta site.
Redphone.