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.
D-Link introduced a Wi-Fi phone, designed in the shell that combines the ability to connect to a wireless network and to use the benefits of IP-telephony in one portable device. Thanks to this Wi-Fi VoIP-phone home and business users get a significant reduction in expenditures for local and long distance calls comparing to standard phone service.