1.Work with SIM card
2.Easy to be installed
3.Could store 3 access numbers, and the 3 accesses are optional
4.Could reroute uses call after programming the specified accessnumber
5.Could set prefix go though or by pass the dialer
6.Supports 3 working modes:
   a.call through before connection establish
   b.call through wait for connection establish
   c.call back
7.NO need to change user''s conventional dialing habit:
   a.support dial from the contact and phone book, noneed to memorize and input the numbers
   b.support dial directly from mobile phone''s missedcalls/call record/call history/recent calls
8.Compatible with many mobile phones,such asBlackberry, Nokia, LG, Motorola, Sony Ericsson, Samsung