Method for realizing user extension set roaming by short message equipment

Abstract

This invention discloses a method for realizing extension roam of group users by short messages including a roam set flow, a user called flow and a calling flow, in which, the extension users set roam information by short messages including roam numbers and switch strategies, when the extension user is the called one, a service control module selects suitable numbers to start up the call based on the roam information set in the service data module, when it is the calling one by the group telephone exchange, the service control module enquires about the service data module to take it as the extension in the group. Using this invention, users can set multiple roam numbers at the same time and conveniently set switch strategy, the system can select suitable roam numbers to call users based on the user set, whether the extension is fixed or mobile, it can roam conveniently.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method for group user extension roaming based on a virtual switchboard. Background technique [0002] Group customers are an important source of revenue and profits for telecom operators due to their large traffic volume, high average profit contribution value, and large demonstration effect. Therefore, how to further consolidate and develop their own group customer groups and business markets is the focus of great attention of major telecom operators. The current group customer services mainly include private branch exchange PBX services and virtual private network services based on intelligent network technology. [0003] PBX technology is a traditional group business solution. PBX is connected to the switching network of telecom operators through trunk lines, and mainly provides voice switching services for large and medium-sized enterprise groups and hotels. Virtual...

AI Technical Summary

Problems solved by technology

[0005] 1. The extension of the PBX system is a fixed extension, which is suitable for a fixed office environment, but cannot be moved or roamed, and cannot meet the requirements of modern mobile office;

[0006] 2. With the help of the mobile switching network, the VPN service can provide mobile call services for mobile phone users of GSM and CDMA networks, but cannot provide mobile call services for PSTN fixed network users;

[0007] 3. The short number of the VPN service extension corresponds to the long number of the user. At present, it can only be modified through the business hall, and cannot be dynamically set, so it is not flexible enough. Although the user can use the call transfer function provided by the switching network to partially solve the problem of receiving calls. problem, but the setting method is single. You can only use the machine to dial a special number to set or cancel when the network supports it. At the same time, you cannot choose according to the status of the user's phone

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