Updated：2008-06-04 18:32 | Source：
The city has an advanced telecom infrastructure. Public telephones can be found on most downtown streets. Mobile operators support GSM and CDMA cell phones. Most office buildings have Internet connections and Internet cafes are almost everywhere. It's also easy and inexpensive to install broadband in apartments that you rent, given the permission of your landlord.
China Telecom is the biggest fixed-line telecom operator, including public telephones, fixed phones in the office and broadband connection at home and work.
China Mobile and China Unicom are the two mobile operators. China Mobile has an extensive GSM network while China Unicom supports both GSM and CDMA cell phones.
Many telecom outlets in the city look more like stalls. They sell mobile SIM cards, top-up vouchers and even rechargers for most phone models
The mobile network is very extensive and powerful in Shanghai. Signals can even be found in the metro and in many elevators. Both GSM and CDMA cell phones have networks. The city supports high-speed wireless networks based on GPRS and WAP, but 3G networks are still undergoing tests.
If you stay in Shanghai for a quite a while, you can become a subscriber to China Mobile or China Unicom. Both of them offer fixed period packages and flexible sim cards. A standard text message costs 0.1 yuan.
How to apply
Here, it's better for you to buy a flexible card, which enables you to top up your account at any time. All the telecom outlets sell such prepaid sim cards. Yitong card and Jiajia card offer the international call service. Both of the cards are the prepaid kind.
You can top up your mobile phone either with top-up vouchers which are available in all telecom outlets, or at the city's official utility payment website which is accessible from here. Please ensure that you have an account at a local bank to use the online payment system.
Foreigners who will settle down in the city also have many international calls can apply a Quanqiu Tong card. Before applying, you should have a local guarantor and take your passport and other official documents to the outlets of China Mobile, Shanghai.
If you bring your own cell phone from your home country, you need to check with your operator before coming to Shanghai for the rates, because you may be charged with both international long distance calls as well as international roaming charges.
Editor : Zhu Xinrui