发明名称 |
Method and system to bypass ENUM to reach a callee via a PSTN or a PLMN |
摘要 |
At least one telephone network element receives an attempt by a caller to place a telephone call to a telephone number of a callee. The telephone number is registered in a telephone number mapping (ENUM) database to receive incoming telephone calls via a Voice over Internet Protocol (VoIP) network. The at least one telephone network element determines a preference to carry the telephone call via a public switched telephone network (PSTN) or a public land mobile network (PLMN) instead of the VoIP network. Based on the preference, the telephone call is forwarded to a gateway to carry the telephone call to the callee via the PSTN or the PLMN instead of the VoIP network.
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申请公布号 |
US7630485(B2) |
申请公布日期 |
2009.12.08 |
申请号 |
US20060482098 |
申请日期 |
2006.07.06 |
申请人 |
AT&T INTELLECTUAL PROPERTY I, L.P. |
发明人 |
KU BERNARD SIU-MAN;HUANG ALEX;SOO ARMSTRONG |
分类号 |
H04M7/00 |
主分类号 |
H04M7/00 |
代理机构 |
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代理人 |
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地址 |
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