3Com

ActionTec

Amstrad

ATL

Atlinks

Avaya

Avro Pacific

Betacom

Binatone

Brother

BT

Cable & Wireless

Canon

ClearOne

DECTsys

DORO

Ecosse

Landis & Gyr

Lazerbuilt

Philips

Plantronics

Polycom

Premier

Pullway

RTX

Samsung

Sennheiser

Sharp

Magic Box

Mitel

Motorola

Muratec

no brand

Europasonic

Geemarc

GN Netcom

Icom

Siemens

Storacall TeleAcoustics

Titan

TUK

VoipVoice

Yamamoto

Nokia

Nortel

NTL

Oki

Olympia

OneTel

Panasonic

iDECT

IDS

Interquartz

Ipevo

Konftel