... dual band 900/1800Mhz,support SMS,MMS,FAX,WEB,JAVA MC52i dual band 900/1800Mhz,support SMS,MMS, ... FAX,WEB,TCP/IP,JAVA MC55 three-band,900/1800/1900MHz support SMS, ... MMS,FAX,WEB,TCP/IP,JAVA MC56 three-band,850/1800/1900MHz support SMS, ... of meetings;to avoid consuming a large number of enterprise human, material and information transfer on time;to avoid ...