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A routing method for IP telephone system

A technology of IP telephony and routing, applied in the field of IP telephony, it can solve the problem of unable to select the caller's landing gateway, distinguish the number as 010, etc.

Inactive Publication Date: 2007-01-17
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For such a situation where multiple gateways support the same route, the above route selection method cannot distinguish the route with the number 010 but different destination gateways according to the called number, so the destination gateway desired by the calling party cannot be selected

Method used

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  • A routing method for IP telephone system
  • A routing method for IP telephone system
  • A routing method for IP telephone system

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0022] In the first embodiment, for each called number, the called gateway is selected according to the IP address of the calling gateway, so that each calling gateway is configured with a corresponding called gateway. Assume that when the gateway 21 with the IP address of 1.1.1.1 is used as the calling gateway, the calling party can reach a certain called party via gateways 23 and 24, and the routes are all 010; when the gateway 22 with the IP address as 1.1.1.2 acts as When calling the gateway, the calling party can also reach the called party via gateways 23 and 24, and the routes are also 010. In order to make the calling gateway correspond to one of the gateways connected to the called party, in this embodiment, the called number of the called party is formed as a transformation by adding 2 prefix symbols 1# or 2# at the beginning The corresponding relationship between the called number and the IP addresses of calling gateways 21 and 22 is as follows:

[0023] IP address...

no. 2 example

[0028] In the second embodiment, for each called number, the gateway connected to the called party is selected according to the calling number, so that each calling number is configured with a corresponding called gateway. Assume that the calling party whose phone number starts with 021 or 020 can reach a called party via gateways 33 and 34 through the H.323 node as the calling node, and the routes are both 010. In order to make each calling party correspond to one of the gateways connected to the called party, in this embodiment, the called number of the called party is formed by adding a 3-digit prefix symbol 21# or 20# at the beginning After conversion, the corresponding relationship between the called number and the calling number is as follows:

[0029] The calling number starting with 020—→20#+called number

[0030] The calling number starting with 021—→21#+called number

[0031]At the same time, the converted called number corresponds to one of the connected gateways ...

no. 3 example

[0034] In the third embodiment, for each called number, the gateway connected to the called party is selected according to the calling number and the IP address of the calling gateway, so that each combination of the calling number and the IP address of the calling gateway corresponds to a called number. called gateway. Assume that the calling party whose phone number starts with 021xxx or 020xxx can use the gateway 41 whose IP address is 1.1.1.1 as the calling gateway to reach a certain called party via gateways 43 and 44, and the routes are all 010. Similarly, the phone number starts with The calling party beginning with 027xxx can reach the called party via gateways 43 and 44 with the gateway 42 whose IP address is 1.1.1.2 as the calling gateway, and the routes are both 010. In order to make the calling party correspond to one of the gateways connected to the called party, in this embodiment, the called number of the called party is converted by sequentially adding two type...

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Abstract

The invention discloses a route selecting method for IP telephone system, wherein the voice data packet of the calling party and the called party is transmitted between the nodes in the IP network, for each of the called party, the address information of each calling party corresponds to one node connected to the called party, the address information is the IP address for the calling number and / or the calling node, the IP telephone system executes the following steps when the calling party makes a call, (1)determining one of the nodes connected to the called party in accordance with the address information and called number, (2) transmitting the IP address of the node connected to the called party to the calling node for instructing the calling node establish calling with the node connected to the called party. The method disclosed by the invention realizes flexible selection for routes.

Description

technical field [0001] The invention relates to IP telephone technology, in particular to a routing selection method for an IP telephone system. Background technique [0002] Traditional telephony transmits voice information through a circuit switching network and a connection-based circuit method. Modern program-controlled telephones mainly use time-division multiplexing technology to improve circuit utilization, and use each fixed time slot that periodically appears on a physical line as a logic circuit, and assign a fixed logic circuit to each voice channel communication. [0003] The so-called IP phone refers to a new type of telephone system that mainly uses the Internet as the transmission medium. The network sends the data packets to the receiving place; the receiving end connects these voice data in series, and restores the original voice signal after decoding and decompressing, so as to achieve the purpose of transmitting voice through the Internet. [0004] For e...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L29/06H04Q3/00H04Q3/545H04M11/06
Inventor 廖猛蛟满士杰张鹏
Owner HUAWEI TECH CO LTD
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