1. Dual-band, GSM 900MHz, GSM 1800GSM
2. Display by large LCD
3. Accurately calculate time and money, thumb through telephone records.
4. It indicates when busy tone.
5. It can be used together with fare register and computer fare register.
6. It displays signal intensity and working state.
7. It displays incoming telegram (it stands for DTMF telephone)
8. Controlled by automatically IP route, and it automatically dials IP to get long - distance.

9. Surcharge, handling charge, call charge, call step size are modifiable.
10. Machine locking, card locking and comb zone locking function.
11. It can refuse to answer telephone, and it adds up call expense automatically.
12. It can work up to 100, 000 hours without any malfunction, so it has stable working performance.
13. The receive signal is sensitive, and the sound is clear when answering telephone.