At present, the super clustering technique can only be applied to the HTTP protocol, and not to other protocols, such as IIOP or SIP.
目前，超级集群化技术只能应用于HTTP协议，而对于IIOP或SIP等其他协议是无效的。
2
By analyzing technique advantage of the SIP and presence instant message's implementing, a functional model in the SIP conference for presence and instant messaging is presented.