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 powergn netcom jabra gn9120 wireless headsetwith a range of 150 metres and a talk time of 12 hours coupled with a slender boom arm and a lightweight design it makes the gn9120 the perfect cordless choice for any user the unique conference call feature lets you hold fully secure conference calls on the move without being tied to meetin