发明名称 |
Signaling state management system for packet network gateways |
摘要 |
A signal state management (SSM) system avoids both the overhead of maintaining call state and complex signaling in a packet network gateway, while simultaneously providing a more scalable system by not placing too great a state or processing burden on the signaling or call processing server. The SSM system sends an event/action table from a call agent to the gateway that directs the gateway to detect and accumulate specified signaling events generated by a telephone. The gateway accumulates the signaling events according to the event/action table and notifies the call agent only when the signaling events specified in the event/action table are detected. The call agent then sends a new event/action table to the gateway that commands the gateway to detect and accumulate a new set of signaling events. After notifying the call agent, the gateway operates in a quarantine where all signaling events are queued. The gateway remains in the quarantine state until the new event/action table is received from the call agent.
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申请公布号 |
US6188760(B1) |
申请公布日期 |
2001.02.13 |
申请号 |
US19980107071 |
申请日期 |
1998.06.29 |
申请人 |
CISCO TECHNOLOGY, INC. |
发明人 |
ORAN DAVID R.;ROWETT KEVIN J. |
分类号 |
H04L29/06;H04M7/00;(IPC1-7):H04M7/00 |
主分类号 |
H04L29/06 |
代理机构 |
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