A：Convenience：No need to dial card number and PIN code and get through instantly after giving the direct dial. B：Swiftness：Mute synchronization preemptive dialing technology and get through within shortest time. C：Automatism：Automatic switch and can automatically choose corresponding IP Card according to the opening region. D：Safety：Can set up private password and systematic password to prevent others peculating or modifying system parameters. E：Compatibility：Compatible to IP Card, local call card, 200 Card, 300 Card and other network cards. F：Multi-function：Suitable for public use, family and company telephones, and extension lines of PABX system. G：Great Capacity：Store up to 9 groups of 60-digit IP Card number and can store 600 groups of opening regions. H：Remote Maintenance: Remote programming function. NOTE:We can also design as per the requirement of customers.