Call information query; chasing dial automatically, chase reversal bell; Music on hold function; 12 sets of 16 one-touch memory; 12 16 double bond memory; 16 groups of outgoing storage; 63 12 or 46 16 calls storage ; brightness adjustment function; preset dialing, deletion function; speakerphone function; the free cell function; three groups alarm clock function; resistance to electromagnetic interference, anti-static, anti-lightning.