Akkus
- AEG
- Alcatel
- Ascom
- Astra
- AT&T
- Audioline
- Auro
- Avaya
- AVM Fritz
- B&O
- Binatone
- DeTeWe
- Doro
- Ericsson
- GE
- Hagenuk
- MaxCom
- Medion
- Motorola
- Myphone
- Olympia
- Panasonic
- Plantronics
- RADIO SHACK
- RCA
- Sagem
- Sanyo
- Siemens
- Simvalley
- Sony
- South Western Bell
- Swissvoice
- Telekom
- Telstra
- Tiptel
- TOPCOM
- Toshiba
- Uniden
- V TECH
- Sonstige
