Affiliated Telephone
Aliant
All-Mode Communications
Alltel
Baker Communications
Bell Canada
Bell South
Commonwealth Communications
CRI Communications
Cross Telecom
CTAP
E&H Integrated Systems
EADS Telecom
Frontier Communications
Hickory Tech
Kiwiplan, Inc.
MCI
Method IQ
Midwestern Telephone
Morefield Communications
North American Communications Resource (NACR)
NextiraOne
NetVersant
Norstan
Nortel Networks
Pyramid Communication Services
Qwest
Relational Technologies
Ronco
Saskatchewan Telecommunications
SBC
Sprint
Shared Technologies Allegiance
Strategic Products & Services (SPS)
Sunturn
Telus
Verizon
Voice Data Systems
Xeta Technologies

Europe
Allnet Ltd.
Altetia
Amillan UK
Ascot Systems
Avaya Comunicacion Espana SA
Avaya Netherlands, UK
Azzurri
Bravida
Bridgehead Nordic & Baltic AB
BT Ignite Solutions Accounts
Cable & Wireless
CC Factory Denmark
Central Telecom 
Com4Voice
Corporate Communications
Cuss
Damovo
Datapoint
DeTeWE
Ementor Norge AS
Exterra
Freedom Communications
G3
Getronics 
IBM United Kingdom Ltd
Intracom S.A.
Jian Ltd
Koc Sistem Bilgi Ve Iletism Hiz AS
Lantec
Mitel Networks Ltd
Nextira One Netherlands, UK, Poland
Nextira One Portugal
Nortel Plc
Sabio
Siemens 
Softlab Limited
Sterry
T Systems
TDC
Teleclient
Telephonica
Telindus Portugal
Touchbase
Touchbase Iberica S.A.
Unisys Portugal
Vocalcom
Xpert

Middle East
Al Moayed Telecom
BTC Networks
ITTO Technology
Locus Telecommunications Inc Ltd 
Middle East Telecommunications Company (METCO)
NCB TechVision Sdn Ltd
Omni Technosys Pvt Ltd
Rashed Al Makawi

India
Avaya GlobalConnect

Australia
Premier Technologies