Why Pakistan forbide Chinese cellphone?

7/7/2008, According to Pakistan media, all Chinese cellphones are forbiden to sell in thisi country. The reason is that part of cellphones from China use the same IMEI(International Mobile Equipment Indentification) code. According to Pakistan Telecom Authority(PTA)'s request, each cellphone must have one unique IMEI. Recently, PTA found hundred of cellphone users who bought Chinese cellphone couldn't use their cellphone because their cellphone had the same IMEI which has been locked because it belonged to a stolen cellphone. In China, there is no this kind of limitation and there is a strong black industry on manufacturing this kind of cellphones. According to a survey by Sina.com, 36.02% persons have used this kind of cellphone, and more than 66.58% persons thought they would like to purchase this kind of cellphones, In China, this kind of cellphone has a special name: Village Cellphne. Because of huge market request and the strong immitation behavior in Chinese industry, also because of the inability of the government, this Village Cellphone has become a cancer on the cellphone industry in China.