Features and Functions -  All-in-One LCD built-in user interface -  Capable of calling regular phone, mobile phone and any TalkPro phone -  Menu Navigation Button -  Hands-Free function with Speakerphone button -  Hold Button -  Phonebook Button -  Clear Button -  Redial Button -  Volume Button -  Incoming Call Light -  Power LED Light indicating working status -  Caller ID -  Soft Tone -  Keypad with 12 function keys -  Dynamic Buffer Management -  Voice Active Detection -  CNG (Comfortable Noise Generation) -  Log on Soft-switch -  Automatic find Soft-switch