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System and method for adjusting codec speed in a transmission path during call set-up due to reduced transmission performance

A technology for transmission paths and terminating calls, applied in transmission systems, interconnection devices, network traffic/resource management, etc., to solve the problem that the call control manager does not know the information of the originating call device and the carrier path of the terminating call device, etc. question

Inactive Publication Date: 2009-09-02
EMBARQ HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0032] In order to solve the problem that the call control manager does not know the bearer path information between the originating call device and the terminating call device, the principles of the present invention support a network segment status table, which the call control manager can access to determine the path along the call. Whether the node segment of the transmission path is working properly

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  • System and method for adjusting codec speed in a transmission path during call set-up due to reduced transmission performance
  • System and method for adjusting codec speed in a transmission path during call set-up due to reduced transmission performance
  • System and method for adjusting codec speed in a transmission path during call set-up due to reduced transmission performance

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[0374] The network layer 3106 can determine how to transfer data between network devices, route packets according to unique network device addresses, and provide flow and congestion control to prevent network resource exhaustion. For the purposes of the present invention, a routing protocol is defined as a protocol used in implementing routing algorithms to support the exchange of routing information between networks. This exchange of routing information enables NEs defined as routers on the network layer 3106 to dynamically build routing tables.

[0375] In one embodiment, the principles of the present invention support the injection of dynamic link state information obtained from PIP packets into a routing algorithm. exist Figure 48 Among them, the data link layers 3104a-3104n may enable one or more network layers 3106a-3106n to obtain the network performance information in the PIP packets. The network performance information may include data related to the delivery of da...

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Abstract

A system and method for establishing a phone call over a packet network. The process may receive a call request from an originating call device to a termination call device. A determination may be made to determine whether the terminating call device is available. If the terminating call device is determined to be available, transmission path status information between the originating and terminating call devices may be retrieved. Status of the transmission path on the packet network between the originating and terminating call devices may be determined. If the status of the transmission path is determined to be within a first range, a call may be established between the originating and terminating call devices via an encoder / decoder (CODEC) having a first data rate. Otherwise, the call may be established between the originating and terminating call devices via a CODEC having a second, lower data rate.

Description

Background technique [0001] As technology has developed, telephony has advanced significantly. Telephony communications were once limited to the analog Public Switched Telephone Network (PSTN), where the PSTN was traditionally formed by two types of telephony carriers: local telephony carriers and long-distance telephony carriers. The local telephone carrier establishes a local network for subscribers to communicate within the local area, while the long-distance telephone carrier establishes a network between the local telephone networks, allowing subscribers of different local carriers to communicate with each other. [0002] Over time, mobile phone networks have been developed to allow subscription users to use mobile phones. First of all, both wireless networks and mobile phones are analog. Wireless networking technology was developed to provide digital wireless communications that provide a clearer signal than analog wireless communications. [0003] At about the same t...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04M7/00
CPCH04L67/1012H04L67/101H04W48/08H04W74/00H04L29/0818H04L29/08189H04W28/18
Inventor M·K·布根哈根R·J·莫里尔W·L·威利
Owner EMBARQ HLDG