Range of Internet Phone

Every year many internet phone companies introduce innovative internet phone devices to support small and big enterprises. The purpose for introducing these phone devices is to resolve the routine problems of the clients. These companies follow a proper procedure before launching any internet phone device in the market like they identify the problems with the traditional phone systems and evaluates accordingly.
Altigen, AT&T
Cisco
Comdial
Definity
Executone
Inter-tel
Isotec
Iwatsu
Lucent / Avaya
Meridian
Merlin-Legend
Merlin-Magix
Mitel
NEC
Nortel-Norstar
Nortel-Meridian
Nitsuko

Meridian
Norstar
Panasonic
Partner
Siemens
Telrad
Tie
Toshiba
Vodavi