发明名称 |
Message modification apparatus for use in a telecommunication signalling network |
摘要 |
A programmable message substitution unit PMSU (60) is provided for modifying signalling messages passing across a link (61) of a telecommunications signalling network without disrupting the link-level procedures operating over the link. In the event of a power failure or upon the detection of an operational anomaly, a bypass relay arrangement (65) is used to bypass the PMSU (60). The PMSU (60) comprises a substitution block for modifying selected messages, a database block for doing database lockups to ascertain new message parameter values to be substituted for existing ones, and a supervision block for checking the operation of the substitution block. The PMSU may be used to implement local number portability or other services. <IMAGE> |
申请公布号 |
EP0792075(A2) |
申请公布日期 |
1997.08.27 |
申请号 |
EP19970300819 |
申请日期 |
1997.02.07 |
申请人 |
HEWLETT-PACKARD COMPANY |
发明人 |
CARSON, DOUGLAS JOHN;KABAY, SALIH;GALLOWAY, JAMES ROBERTSON;MOTTISHAW, PETER JOHN |
分类号 |
G06F15/00;H04L29/02;H04M3/22;H04M3/42;H04M7/00;H04Q3/00 |
主分类号 |
G06F15/00 |
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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