244.12 Answer an External Call during an Intercom CallYou will hear an alert tone when you receive an incoming external callduring an intercom call, and you can choose from the following options:1) Press O to cancel the intercom call and let the handsets receivenormal incoming ringing.2) Press T to answer the incoming call and end the intercom call.3) Press I to answer the external call and put the intercom on hold.4) When the incoming external call is connected and the intercom callis on hold, press and hold I to start a three-party conference callwith both the incoming and the intercom parties.5) When one handset is connected to an external call, you can press Ton another handset to enter into a three-party conference call directly.4.13 Initiate an Intercom during a CallYou can intercom with another system handset during a call, or inviteanother system handset to join in a conference call with you and theexternal caller.1. During the call, press I to put the external call on hold.• Intercom ring starts immediately if only 2 handsets are registered.• If there are more than 2 registered handsets, the handsetnumbers which are available for intercom will be displayed.2. Press the handset number you want or * to call all handsets.Note: If there is no answer from the called handset, or you wish to cancelthe call before it is answered, press I to return to the external call.3. Press T on the called handset to answer the call and start aconversation.4. When the intercom call is connected, you can choose from thefollowing options on the originating handset:1) Press and hold I for 2 seconds to connect both handsets tothe call in conference mode.2) Press O on the handset to terminate the intercom, and leavethe external call connected to the other handset.