Patent ID: 7218714

Claim:
A method of calling service among devices in a home network, the method comprising: a service calling party obtaining a service handle of a called service by using characteristic information of the called service and sending a service call request message to a called party using the service handle obtained; a protocol stack of the called party, after receiving the service call request message, determining whether or not the called service exists at the called party based on the service handle of the called service contained in the service call request message and determining whether or not the called service has established a renting relationship with the service calling party, wherein if a renting relationship is established, the called party sends a service call response message containing a service call result to the service calling party; otherwise, the process is ended; and a protocol stack of the service calling party, after receiving the service call response message, determining whether or not a calling service exists in the calling party based on a service handle of the calling service contained in the service call response message and determining whether or not the calling service has established a renting relationship with the called party, wherein if a renting relationship is established between the calling service and the calling party, the service calling party and the called party begin art interacting process of a service call; otherwise, the process is ended.