Features:
1) Stackable: suitable for business use
2) Convenient: no need to dial card numbers and PIN codes and get
through instantly after directly dialing the target phone number
3) Swift: mute synchronization preemptive dialing technology makes
users get through within shortest time
4) Automatic: automatic switch and can automatically choose
corresponding IP card according to the opening region
5) Safe: can set up private password and systematic password to
prevent others from peculating and modifying system parameters
6) Compatible: compatible with IP card, local call card, 200 card,
300 card and other network cards
7) Multi-function: suitable for public use, family and company
telephones, and extension lines of PABX systems
8) Great capacity: stores up to 9 groups of 60-digit IP card numbers
and can store 600 groups of opening regions
9) Remote maintenance: remote programming function