cm810p features cm810p pcmcia card .. cdma 800mhz 2000 1x, back forward is-95 a/b .. provides industrial standard at command .. one pcmcia type ii interface to connect pc, one r-uim slot, one earphone microphone connector and one hide contractive antenna .. high speed data packet service, max rate up to 153.6kbps .. voice function, make/receive a call, caller id, supports qcelp 13k and evrc 8k voice arithmetic; incoming call indicating music can select music from pc including mp3, wma, wav etc. .. sms: sms group send, long sms auto separate send .. customized gui, hot key for internet access, real time flow monitor and data flow status .. supports windows98/me/2000/xp/nt4 os .. supports r-uim as well as uim .. supports call wait, call transfer and call forward etc. service（need operator support such service）