Voice over IP gateway VG200 was specially created for Cisco AVVID (Architecture for Voice, Video and Integrated Data) Call Manager. This device was not meant to support add-ons, such as toll bypass using H.323 protocol or SIP gateways.
Easytone Technology, Inc. (Hongkong), launched in 1997, is dedicated to the system integration of Internet/IP-Network Voice Solutions and value-added services among datacom and telecom fields.