1. Make sure you have an IC calling card and then find an IC public phone booth.
2. Pick up the handset and hold on, if the telephone works, after buzzer sound, you
can find "Insert your card" in Chinese or both Chinese and English on the display screen.
3. Insert your IC card into card slot, and the card credit will display on the screen in RMB.
4. Dial number just as use a regular land-line.*
5. Talk.
6. Hang up and dail another number or receive card.

* How to make phone calls in China
* How to dial international call in China

A picture of IC public phone

You can directly use IC card public phone for Emergency Call, no card required.

Police: 110
Ambulance: 120
Fire: 119
Traffic Accident: 122

Charges:

Domestic long-distance call: 0.15 yuan/min
Long-distance call to Hong Kong, Macao and Taiwan: 1 yuan/min
Long-distance call to USA, Canada, Singapore: 1 yuan/min
Long-distance call to other countries and regions : 8 yuan/min