Why do we not have PC-to-phone service?

Hearing the news of PC-to-phone services of Lycos on the AP, i want to know the reason for china's people not being able to use such service. Until now, there are many companies providing this service, such as Google's talk, Yahoo's messager, eBay's Skype, Voipdiscount's pc-to-phone, and so on, but in china we still pay the same fee as in western countries while we have a much lower income. and sometimes we pay more than people of the western countries, such as calling from America is much cheaper than that from china mainland to American!
About the reason for china's present condition without PC-to-phone service, i have some thoughts, and want to stress the most important reasons.
first, China Telecommunication company is something of monopolization, it does not want the net service to share its profit, so with the priviledge in its hand, it forbids PC-to-phone service as long as it can;
second, the government uses the security as an excuse, and forbids the entering of foreign companies and modern net services.
from the above, we can see that we should not take the service of Ching telecommunication just because it is the company of our company, we should make it to reform!