Method for acquiring external line state in Bluetooth cordless telephone system

A cordless phone, bluetooth technology, applied in the direction of telephone communication, near-field transmission system using transceivers, electrical components, etc., can solve the problem that the bluetooth terminal cannot know the status of the outside line in real time, so as to improve the success rate of call connection and enhance the perception Effect

Active Publication Date: 2008-06-11
CHINA TELECOM CORP LTD
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  • Abstract
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Problems solved by technology

[0010] For this reason, in view of the problem that the Bluetooth terminal in the prior art cannot know the status of the outside line connected to the service network in real time, the pr

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  • Method for acquiring external line state in Bluetooth cordless telephone system
  • Method for acquiring external line state in Bluetooth cordless telephone system
  • Method for acquiring external line state in Bluetooth cordless telephone system

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Embodiment Construction

[0020] figure 1 The basic components of Bluetooth software and hardware of the Bluetooth gateway and the terminal in which the embodiments of the present invention can be realized are described. Generally speaking, in addition to completing the service control of the Bluetooth cordless phone (CTP), the service application software 8 should also provide service mode query and authentication and service control in the corresponding mode. The Bluetooth cordless phone application 7 provides users with various functions of the cordless phone, and the required voice is provided by the baseband 2; the required control information is provided by the SDP (Service Discovery Protocol) 5 and the TCS (Telephone Control Protocol) 6 . The standard communication protocol L2CAP (Logical Link Control and Adaptation Protocol) 4 multiplexes various protocols in the upper layer. The HCI (Host Control Interface) 3 allows sending standard HCI commands and receiving the resulting responses, and the ...

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Abstract

The invention discloses a method of acquiring an external mode in a Bluetooth cordless telephone system to solve the problem that a Bluetooth terminal can not real-time realize the external mode connected with a service network. The method includes the following steps: normal service connections of a plurality of Bluetooth terminals and Bluetooth gateways in the service range of the Bluetooth gateway are established; when the external mode of a service network line connected with an uplink of the Bluetooth gateway is changed, the Bluetooth gateway inform changed information of the external mode to all Bluetooth terminals connected with the Bluetooth gateway; after the Bluetooth terminals receive the changed information of the external mode, a corresponding mode update processing is executed. The invention can obviously increase the perceptibility of the Bluetooth terminal to the external mode, and is favorable for the determination of the terminal and a service user to the external mode. Moreover, because the external mode can be acquired before the Bluetooth terminal initiates a service, the invention can improve the success ratio for conversation connection.

Description

technical field [0001] The invention relates to a bluetooth cordless telephone system in the field of wireless communication, in particular to a method for obtaining the external line state of a bluetooth gateway (AP) in the bluetooth cordless telephone system. Background technique [0002] At present, with the development of Bluetooth technology and its industrial chain, Bluetooth products are constantly enriched. Bluetooth products are widely used in wireless terminals due to their low cost, low power consumption, small size, and open standards (SIG specifications). [0003] Bluetooth Special Interest Group (SIG for short), as the Bluetooth standardization organization, defines a complete set of Bluetooth protocol architecture from hardware modules, intermediate protocol layers and high-end application specifications. [0004] For example, a Bluetooth cordless phone application framework (Cordless Telephone Profile, CTP for short) is defined in the SIG specification, and ...

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Application Information

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IPC IPC(8): H04B5/02H04M1/725H04M1/72412H04M1/72454
Inventor 肖海李宝荣刘兆元
Owner CHINA TELECOM CORP LTD
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