The bt converse 1300 is fully pbx working has 100 name and number memory on hook dialling call timer access code and secrecy it also operates from battery powerplantronics cs70 wireless headset the cs70 only weighs 22 grams ensuring all day wearing comfort without compromising style moreover the headset has easy volume mute call answer and end and talk indicator functions and makes use of a unique microphone the patented voice tube which is easily removable and very hygenic dect