Features: The corded phone boasts 99 numbers with 8 digits incoming call memory,66 numbers with 16 digits incoming call memory and 20 numbers with 16 digits outgoing call memory. Simple two-line operation to hang off one line and pick up another line;you can hold the current line and talk to another line or hold two lines while conference conversation.And there are 16 kinds of ringing tone for Line1 and Line2 selection.If you want to adjust the ringtone,you need to connect the line cord. The phone has multiple functions,such as FSK/DTMF Caller ID receiving and auto-detection with built-in P/T switch and pre-dail/mute/flash/conference conversation function,set PABX code and local area code.(NOTE: Caller ID function will work only after you have subscribed for the service in the local telecom company.) 6 groups one touch memory and 10 groups 16 digits two touch memory.With 8 level LCD contrast adjustable,the flash time is 100ms,in on hook state,you can press FLASH key to select LCD contrast. The corded telephone has LED indicator for missed call and ring.When missed a new call,the indicator for missed call will be flashes.You can check,erase,call back or delete incoming/outgoing calls. Specifications: Material: ABS Color: Black/white(optional) Item Size: 20.8 * 16.7 * 6.5cm / 8.2 * 6.6 * 2.6in Item Weight: 581g / 20.5oz Package Size: 21.4 * 21.2 * 7.3cm / 8.4 * 8.3 * 2.9in Package Weight: 780g / 27.5oz NOTE: Before use put three "AA" size,1.5V batteries(Not Included) into the battery compartment,otherwise back light will not come in the LCD display of your telephone. Packing List: 1 * Handset 1 * Base Unit 1 * Base Bracket 1 * Telephone Line 2 * Network Cables 1 * User Manual