Geo Softphone App:  With Geo you can make and receive calls from your smartphone via the office telephone lines while concealing your personal cell phone number.  You can check voice mail messages, easily record and replay phone calls.  With enhanced conference calling you can build an private 8 party conference.  All participants listed so you can see who is on the call. The built-in Geo directory shows the status of other system users and makes transferring calls easy.  And with the Presence feature you can also set your status to indicate if you are Available, Away, or in Do Not Disturb.