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Management of calling name delivery in telephone networks providing for telephone number portability

A telephone number and telephone network technology, applied in telephone communication, electrical components, multiplexing system selection devices, etc., can solve problems such as interference

Inactive Publication Date: 2003-05-14
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] This interference problem would also arise if EO 32 used the Global Header Transformation function to route the initial CNAM lookup request instead of passing it on to SCP 36

Method used

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  • Management of calling name delivery in telephone networks providing for telephone number portability
  • Management of calling name delivery in telephone networks providing for telephone number portability
  • Management of calling name delivery in telephone networks providing for telephone number portability

Examples

Experimental program
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Embodiment Construction

[0030] Reference is now made to Figures 2A-B, which are a flow diagram of the steps performed by an SCP constructed in accordance with the present invention. Whenever the SCP receives a CNAM lookup request for a call, these steps are performed in the manner shown in the figure, see block 50 in FIG. 2A. This CNAM query request may come from, for example, an EO in the local network, or an SCP in the remote network. In block 52, the SCP compares the originating point code (OPC) in the CANM query request with its own OPC (well known in the art, each node in the network has a unique OPC, and this node sends There is this OPC in all the global title routing messages of the global title.), judge whether the received CNAM query request is sent by itself or other nodes. This step is to prevent an "infinite loop" from appearing in the flowcharts of Fig. 2A-B when the CNAM query is issued by the SCP itself. At this point, the SCP generates a "Return Error" message, as shown in block 54...

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PUM

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Abstract

A system and a method for managing calling name (CNAM) queries in a plurality of telephone networks (1-3) including a plurality of subscribers (10, 30, 50) each assigned a telephone number in a predetermined number series associated with a particular switch (12, 32, 52) in one of the telephone networks, wherein at least one of the number series is a portable number series including telephone numbers assigned by one network but connected to another network. According to the present invention (FIGs. 2A-B), if the calling party number (CgPN) belongs to a portable number series, gapping will be applied to CNAM queries containing either portable telephone numbers associated with a location routing number (LRN) identifying the switch and network to which the CgPN is connected, or non-portable telephone numbers belonging to the same number series as the LRN. On the other hand, if the CgPN does not belong to a portable number series, gapping will be applied to CNAM queries containing telephone numbers belonging to the same number series as the CgPN.

Description

Background of the invention [0001] technical field [0002] The present invention relates to network management of telephone network services or functions, more particularly to network management of telephone network calling name (CNAM) services which also provide telephone number portability (NP) services. [0003] related prior art [0004] Historically, telephone companies have provided new calling services or features to their customers by implementing new versions of software in their switches. However, this introduction of new services is very slow, and what can be provided is limited to the new features introduced by the switch vendors in the latest versions of the software. To solve this problem, the telephone industry has developed a new network called the Intelligent Network (IN), which distributes at least some of the intelligence (software) that supports calling services in peripheral call processing computers outside the switch. The local exchange can access...

Claims

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Application Information

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IPC IPC(8): H04M3/54H04M3/00H04M3/42H04Q3/00H04Q3/545H04Q3/72
CPCH04Q2213/13176H04Q2213/13166H04Q3/005H04Q3/72H04Q2213/13091H04Q2213/13345H04Q2213/13097H04Q2213/13387H04Q2213/13103H04Q2213/13102
Inventor L·H·福斯纳托
Owner TELEFON AB LM ERICSSON (PUBL)
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