发明名称 |
Method of and system for extending internet telephony over virtual private network direct access lines |
摘要 |
A virtual private network includes an internet protocol (IP) network and a public switched telephone network (PSTN). An enterprise gateway is operably connected to the IP network. The enterprise gateway is operably connected to a switch of the PSTN through a direct access line (DAL). The set-up signaling for virtual private network calls and the calls themselves are transported across the internet protocol network and the public switched telephone network through the direct access line. |
申请公布号 |
AU6239800(A) |
申请公布日期 |
2001.02.19 |
申请号 |
AU20000062398 |
申请日期 |
2000.07.28 |
申请人 |
MCI WORLDCOM, INC. |
发明人 |
STEVEN R. DONOVAN;MATTHEW J. CANNON |
分类号 |
H04M3/42;H04L12/46;H04L29/06;H04L29/12;H04M3/00;H04M7/00;H04M7/12;H04Q3/00 |
主分类号 |
H04M3/42 |
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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