Model Number: Caller ID Phone COSUN SM20 Brand Name: COSUN Key Specifications/Special Features: Supports ETST protocolFSK/DTMF caller ID availableThree-line dot-matrix LCD displayGreen backlight10 sub-mailbox can be set

125 groups SMS storage with 160 characters each for both sentor received

Send or receive message up to 640 characters

100 groups phonebook (24-digit number and 16-digit name)

100 groups received call record

100 groups missed call record

100 groups dialed call record

6-digit local code

Supports 32-digit pre-dial and correction function

Calendar/real-time display

LCD brightness adjustable

Lock function (built-in lock without hardware)

Two-level speaker volume adjustable

Four-level ringer volume adjustable (built-in)

New call and new message indicate

Low power indicate

Talking number in English

Eight chord rings