发明名称 |
Interworking system between IP networks using different IP addressing scheme, application layer gateway (ALG), network address translator, and SIP message routing method thereof |
摘要 |
Disclosed are an interworking system between IP networks using different IP addressing scheme, an application layer gateway (ALG), a network address translator, an interworking method, and a SIP message routing method. The interworking system between a local network using a private IP and a global network using a global IP includes a STUN server and an application layer gateway (ALG). The STUN server provides binding information of header information of a global IP binding request. The application layer gateway (ALG) performs a global IP binding request with header Information changed by IP masquerading, and performs routing by applying the received binding information to media receiving address information of a SIP message. |
申请公布号 |
EP2056567(A2) |
申请公布日期 |
2009.05.06 |
申请号 |
EP20090151106 |
申请日期 |
2007.04.24 |
申请人 |
KTFREETEL CO., LTD. |
发明人 |
LEE, JANG-WON;LEE, HO-JIN;BAK, SANG-MAN |
分类号 |
H04L12/46;H04L29/06;H04L12/66;H04L12/70;H04L12/749;H04L29/12 |
主分类号 |
H04L12/46 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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