Call waiting with “Caller ID” uses a special signal in
order to warn you about an incoming call, during another call there are shown the
name and number of the calling subscriber on the display. The function also
allows switching between two calls.
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.