Method and system for telecommunication network to provide session service to internet

Provided is a method for a telecommunication network to provide a session service to the Internet. An access gateway of a telecommunication network supports an Internet application protocol, or an access-side device of the telecommunication network is upgraded to support the Internet application protocol, and the Internet is connected to the telecommunication network via the access gateway or the upgraded access-side device. The method further includes that an Internet user establishes a session with a telecommunication user or another Internet user via a telecommunication network. A system for a telecommunication network to provide a session service to the Internet is also provided. By upgrading an access-side device of a telecommunication network, the disclosure enables the access-side device to support an Internet application protocol and converges the Internet with the telecommunication network, thus being able to provide a session service to an Internet user. The disclosure facilitates the usage of the session service by the Internet user.