Method for realizing online public telephone of GSM network

Abstract

A method for realizing an online public telephone in a GSM network of the present invention is realized through unstructured supplementary data service signaling, which includes the steps: after the call enters the intelligent network platform, the service control point performs authentication according to the calling and called information, After the authentication is passed, the service control point notifies the mobile switching center to connect the calling party and the called party; when the call ends, the service control point charges, and stores the bill information of this call into a database, and the intelligent network platform According to the current call information, the bill is carried in the message packet of the unstructured supplementary data service, and delivered to the smart terminal; the smart terminal receives the bill, parses it, and displays it. Because the bill is generated by the system and sent down to the terminal, the method of the invention avoids tariff disputes and ensures that the terminal and the system have consistent tariffs.

Description

technical field [0001] The invention relates to a technical application in a mobile intelligent network belonging to a value-added telecommunication service, in particular to a method for realizing a manned intelligent public telephone service by using a mobile terminal. Background technique [0002] In the prior art, the online manned telephone of the wired network adopts FSK (Frequency-shift keying) mode or DTMF (Dual Tone Multi-Frequency) mode to transmit bill information. When the call ends, the platform generates a call bill based on the call information of this call, and sends it to the terminal through FSK or DTMF. [0003] But in the wireless network, due to the limitation of bandwidth, it is impossible to use FSK signal to transmit manned public phone bills, while using DTMF signal has the disadvantages of slow speed, less transmitted information, and unreliable signal. Therefore, it is not suitable to use FSK signal or DTMF signal to transmit bills online. At pre...

AI Technical Summary

Problems solved by technology

For example, the meter shows that the user made a call for 1 minute, but in fact the user only made a call for 45 seconds, which caused a tariff dispute

[0008] 2. Terminal and system billing are inconsistent;

[0009] As mentioned above, due to the inconsistency between the clock of the meter and the system clock, the billing of the system and the terminal is inconsistent

[0010] 3. It is difficult to modify the tariff;

Modify rate operation will fail if the user is making a call or if the phone user is powered off

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