Work with GSM SIM card.

Easy to be installed.

No need to punch the SIM card, just attach to the SIM card. Could store 3 accesses numbers, and these 3 accesses are optional.

Could reroute uses call after programming the specified access number

Could set prefix go though or by pass the dialer

Support three working mode:

A. Call through before connection establish

B. Call through wait for connection establish

C. Call back No need to change users conventional dialing habit:

 A. Support dial from the Contacts and phone book, no need to memorize and input the numbers.

B. Support dial directly from mobile phone's missed calls/ call record/ call history/ recent calls

Compatible with many mobile phones, Nokia, Motorola, Sony Ericsson, Samsung, LG, and so on.