The currency in China is known as the renminbi or yuan. It is not a freely convertible currency, but its value has been allowed to rise and fall within a wider range in recent years, with an official exchange rate of 6.78 yuan for $1 on July 21, 2010
Foreign nationals - currently in China - who do not have a residence permit (holders of F, L, C and G visas), those who are studying or doing an internship in China, and dependents of foreigners employed in the country, should take precautions so as to avoid being illegally employed.
International calls can be made directly from hotel rooms with IDD lines. Some large post offices also offer this service.