and 2 other parties. You can establish a conference callusing the following types of calls.– 2 IP calls (Peer to peer mode only; see page 28)– 1 IP call and 1 TEL call– 1 IP call and 1 PS call– 1 IP call and 1 PC callTo establish a conference call when you receive a call,see page 36.Conference calls using the IP and TEL lines1. PressCONF to put the current call on hold.2. Confirm that the desired line ("IP" or "TEL") isselected.• If the unit is in IP-PBX mode, the available lineis automatically selected. Continue from step3.• If the unit is in peer to peer mode and the currentcall is an IP call, you can change the selectedline by pressing the left function button ([F1]).The IP line is selected.The TEL line isselected.[F1] [F1]• If you cannot select the desired line, pressBACK, then change the "Line Selection"setting (see page 32). After you have changedthe setting, repeat this procedure from step 1.3. Call the party you want to add to the conversation.• You can end the second call and return to theoriginal call by pressingBACK .• To call a party stored in the phonebook, seepage 34.4. After the called party answers, pressCONF tobegin the conference call.• Before beginning the conference call, pressENDto end the second call and return to theoriginal call.Note• We recommend setting the "TEL Line LevelReduction" setting to "On" when establishingconference calls that use the TEL line (seepage 55).Adding a PS or PC line call to an IP call1. Confirm that the "Line Selection" setting is setto "IP + PS" or "IP + PC" as necessary (seepage 32).2. PressCONF to put the current call on hold.• If the unit is in IP-PBX mode, the PS or PC lineis automatically selected. Continue from step4.3. Peer to peer mode only: Press the left functionbutton ([F1]) to select the PS or PC line.Example: PressingPS to select the PS line.The IP line is selected. The PS line is selected.[F1]4. Make a call using the PS or computer.5. After the called party answers, pressCONF tobegin the conference call.• Before beginning the conference call, pressENDto end the second call and return to theoriginal call.Note• When the operation mode is set to "USBAudio", conference calls cannot be made.Ending a Conference CallPress [ ] to disconnect both parties.or1. PressEND .• PressBACK to continue the call.2. Press [ ] or [ ] to select the party you would liketo remove from the conference, then pressSELECT .• The selected party is disconnected and you cancontinue to speak with the remaining party.• To disconnect both parties, select "All", thenpressSELECT .Document Version 2010/02 Operating Instructions 35Making and Answering Calls