Dual-mode talkback terminal and talkback method thereof and communication system

A technology of intercom terminal and terminal, applied in the field of communication

Active Publication Date: 2015-09-30
CHINA TELECOM CORP LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] A technical problem to be solved by the embodiments of the present invention is to provide a dual-mode intercom terminal, its intercom method, and a communication system to solve the problem that th

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  • Dual-mode talkback terminal and talkback method thereof and communication system
  • Dual-mode talkback terminal and talkback method thereof and communication system
  • Dual-mode talkback terminal and talkback method thereof and communication system

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Embodiment Construction

[0049] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0050] At the same time, it should be understood that, for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0051] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.

[0052] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the descript...

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Abstract

The embodiment of the invention discloses a dual-mode talkback terminal and a talkback method thereof and a communication system. The method comprises the steps that if a terminal scheduling unit detects that a communication link between the dual-mode talkback terminal and a talkback server is not available in the process of group session of a public network talkback unit, a user interaction unit is connected to an analog talkback unit, working frequency point information which is preconfigured in the analog talkback unit and corresponding to group information is inquired and the analog talkback unit is indicated to perform the group session via an analog talkback mode; and if the terminal scheduling unit detects that the communication link between the dual-mode talkback terminal and the talkback server is recovered to be available in the process of the group session of the analog talkback unit through the analog talkback mode, the analog talkback mode is controlled to be switched back to a mobile network mode. A problem that an interphone is interrupted in a mobile network or moves to an area without coverage of the mobile network and then talkback cannot be realized by using a talkback technology based on public network bearing can be solved by the dual-mode talkback method.

Description

technical field [0001] The invention relates to communication technology, in particular to a dual-mode intercom terminal, an intercom method, and a communication system. Background technique [0002] Based on the intercom technology carried by the public mobile network (referred to as: public network), for example, PTT Over Cellular (PoC), due to its advantages of large coverage, low networking cost, and high degree of informatization, currently It has achieved a large number of applications and has become a new trend in the development of intercom technology. [0003] The traditional analog walkie-talkie modulates the signal to the transmission frequency of the walkie-talkie and works within the power coverage range of the walkie-talkie (5-10KM). It has the characteristics of flexible networking, no need for network support, and low price. [0004] In the process of realizing the present invention, the inventor found that the existing intercom technology based on public mo...

Claims

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Application Information

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IPC IPC(8): H04W4/10H04W88/06
Inventor 陈园陈洁
Owner CHINA TELECOM CORP LTD
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