Method of detecting the type of network address translator

A method of detecting the type of network address translator utilizes the SIP standard structure and protocol between a user agent and a call manager; wherein after receiving a request message sent from the user agent, the call manager uses different step to reply, and then detects the network type...

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Bibliographische Detailangaben
Hauptverfasser:	LIU CHUNG-FAN, WENG CHIH-DA
Format:	Patent
Sprache:	eng
Schlagworte:	CALCULATING COMPUTING COUNTING ELECTRIC COMMUNICATION TECHNIQUE ELECTRIC DIGITAL DATA PROCESSING ELECTRICITY PHYSICS TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:	A method of detecting the type of network address translator utilizes the SIP standard structure and protocol between a user agent and a call manager; wherein after receiving a request message sent from the user agent, the call manager uses different step to reply, and then detects the network type of NAT according to the reply message sent by the user agent.