How can I use lumia 822 in china telecom?

Question

I buy a Nokia lumia 822 from taobao.com and test,
In china telecom's network,lumia 822 can phone,SMS,but cannot surf internet,cannot 3G,and I install nokia access point app to change APN setting,It also cannot 3G
In china unicom's network,lumia 822 can phone,SMS and surf internet,can 3G
But I want use lumia 822 in china telecom's network,How can I do it?thanks
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Answer 1

The 822 is a phone not intended for the Chinese market. It is a Verizon Wireless device and built specifically for use in their network. It supports the following radio bands/frequencies;
LTE network bands: 13 
WCDMA network: 850 MHz, 900 MHz, 1900 MHz, 2100 MHz
CDMA network bands: BC0, BC1
GSM network: 850 MHz, 900 MHz, 1800 MHz, 1900 MHz
As Chinese Lumia phones have firmware specific to the chinese market and there are certain limitations and restrictions to using these phones in China it is not unlikely the APN settings for your carrier are not available through the access point settings. You will need to enter them manually there, settings can usually be found on the carrier (support) website. in Settings>Access point tap the plus sign on the bottom of the screen to access the manual settings. Obviously for this to work the phone needs to be unlocked from the Verizon network. 
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