Support USB phone PC to PC, PC to Phone, Phone to PC H323 compliant Touch-tones [DTMF] Dial/ Redial/Hangup Dynamic CODEC Selection Caller ID Call Timer Backspace/Clear/Delete Microphone & Speakers Levels Last Caller-IDs Recent Calls Dialed Recent Calls Received Sound Device Selection New Familiar-looking Menu Phonebook Speed Dial Benefits: Easy to install Intuitive user interface & Menu. Easy to navigate and configure. G.723/729/GSM codecs included NAT/Firewall support Multiple gatekeeper selection Customised skin can be provided by Author