ussd

问题 Is there a possibility of handling the data displayed on call cost dialogue received by prepaid user. I want to save all the balance reduction for along with call duration in my sqlite db. 回答1: As we learn from the already famous blog post As a start, look at the PhoneUtils class in the Android source code. [...] Specifically, looking at line 217, an intent with the name “com.android.ussd.IExtendedNetworkService” is being composed. So what you need to do is implement your own service that

问题 In my android app, I am sending USSD codes ( #144#73# ) using below Intent : String baseUssd = Uri.encode("#") + "144" + Uri.encode("#"); StringBuilder builder = new StringBuilder(); builder.append(baseUssd); builder.append("73"); builder.append(Uri.encode("#")); Intent intent = new Intent(Intent.ACTION_CALL, Uri.parse("tel:" + builder.toString())); It's working well. What I want now is to send this code : #144#73MA# I run this using the dial pad, following the Operator USSD menu , that

问题 I've understood that an USSD message consists of 160 bytes. For 7 bit data coding schemes, the maximum number of characters is 160*8/7 which gives 182 characters. It's unclear to me what is the maximum number of characters for UCS2 encoding. Normally, it would be something like 160/2, but I have some mixed information on this. 回答1: The maximum size of a USSD message is 160 bytes. For GSM 7 Bit messages you are correct in saying the limit is 182 characters. UC2 encoding per definition is fixed

问题 I want to generate a tree-based menu using Java that will appear on a USSD browser. Each node may have children, ending with leaf nodes. I will also have to maintain state regarding each user who accesses this menu (like his current position on the menu) to facilitate navigation. Any ideas on how I may achieve the tree generation and state management? 回答1: I assume that you get a message from the gateway such as: (Session#, UserInput) and you need to compute the next information to send to

问题 i did many research about ussd but I can't read USSD respone and how can I prevent ussd dialog like this application. https://play.google.com/store/apps/details?id=com.iba.ussdchecker&hl=en i install this https://github.com/alaasalman/ussdinterceptor restart my phone (S2 android 4.0.3), send ussd code but nothing happen, someone tell me that I have to read the log, but how can i do that. i try these code to read USSD from log USSD.java package com.example.ussd; import java.io.BufferedReader;

问题 I update for this question and know it worked correctly.. I try to check balance in my mavecom modem but I got no response in my textbox. It stays empty. Here my code : private SerialPort _port; private void simpleButton1_Click(object sender, EventArgs e) { _port = new SerialPort(); _port.PortName = cbPort.Text; _port.BaudRate = 115200; _port.Parity = Parity.None; _port.DataBits = 8; _port.StopBits = StopBits.One; _port.Handshake = Handshake.RequestToSend; port.DataReceived += new

问题 I have bought ZTE MF667 GSM Modem and i am using Hyper Terminal to send AT COMMANDS, i have a problem with USSD e.g : AT+CUSD=1,"*111#",15 (to check balance) but it returns only OK AT+CUSD=1,"*111#" returns only OK I have tested another AT COMMADS which work fine like AT+CMGL="ALL" to read SMS (WORKS) How could i resolve the problem please ? 回答1: First of all USSD messages are fairly similar to SMS in that a message is sent from the mobile device to the operator network. This means when you

问题 I'm trying to send a USSD code through my cellphone, so I used an intent as many here suggested is the way to send the code. Unfortunately, every time I send the code it sends the same number *4355696753 the code I'm using to send the USSD is: sendCode.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { // TODO Auto-generated method stub String cUssd = ussdCodeEdTxt.getText().toString(); String cToSend = "tel:*" + cUssd + Uri.encode("#");

问题 I am facing an issue related to AT+CUSD command. On some Gsm modems, this command expects three parameters while on the others, it expects just two parameters. Moreover, different values of those parameters. I want to know that, how can I configure the Gsm modem so that this command can be executed in a uniform way on most Gsm modems. Forexample: On Nokia c6-01 , the cusd command is executed successfully only in this way: AT+CUSD=1,"*123#",15 Whereas on Sony Ericsson K750: AT+CUSD=1,"*123#"

问题 I am developing an application that sends a USSD message to a USSD gateway. However, I do not have an account for the carrier owner of the gateway yet. Still, I have some other accounts and I would like to test if my USSD codding is fine. In that sense, is there a standard USSD command I can send and be understandable and answered by any USSD gateway regardless of the operator? If so, which one(s)? 回答1: As you probably know, USSD stands for Unstructured Supplementary Services Data, and the