With two-line operation you can conference in two outside lines to have a three-way conversation. Or place your current call on hold to make another call
5. 8 GHZ; 3-LINE BACKLIT LCD; EXPANDABLE UP TO 4 HANDSETS; 40-NAME/NUMBER CALLER ID MEMORY; DIGITAL VOICE ENCRYPTION SYSTEM; 5 RINGTONES; 75-CHANNEL AUTO SCAN; FLASH, LAST NUMBER REDIAL, PAUSE, HOLD & MUTE; HEARING AID-COMPATIBLE (HAC) ; HEADSET JACK; INCLUDES 2 HANDSETS; SILVER & BLACK SUBCATEGORY2: ...