| 摘要 |
A method and system for implementing the services compatibility is disclosed. It includes: the Service-Calling Session Control Function S-CSCF receives the initial request message of the Session Initiation Protocol SIP, and sends the invocation request message to the first application service (501); the first application server receives the invocation request message, and performs the corresponding service process, sends the invocation request reply message to the S-CSCF, which has the current service invoking status information (502); according to the received current service invoking status information and the preset service compatibility associated description data, the S-CSCF judges whether or not to allow invoking the second application server associated description data, if allowed, then it invokes the second application server associated service (503).
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