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Communicate With GSM Via Modem Using USSD Codes

$30-250 USD

Closed
Posted over 10 years ago

$30-250 USD

Paid on delivery
We need a very good Java programmer who can work with AT commands in Modem. Clearly, the developer need to develop a java program which can pull request from mySql table . The request will Contain phone number and recharge amount. Based on the phone number (which also tells who the Gsm Carrier is) the program will select the appropriate carrier and send USSD codes ( some codes will be interactive and some direct) based on the USSD return ,the program need to update mysql table flag. This is a mobile recharge system where a topup SIM will be place inside a MODEM. And the java program can DIAL USSD code using the modem and AT command. Alternatively, you can install other intermediary Linux software to communicate with the modems and use their Api's We are looking some urgent work, so, if you have something ready you get prefer.
Project ID: 5158540

About the project

7 proposals
Remote project
Active 10 yrs ago

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7 freelancers are bidding on average $223 USD for this job
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Hi there, I have over 7 years experience working on HTML, Wordpress, Magento, Database administration, OpenCart, Website Design, Logo / Banner Design Joomla, CSS and Linux Administration. I have read the project description very well, and i would like to complete this project. lets complete this project
$257 USD in 3 days
4.9 (235 reviews)
7.3
7.3
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Dear sir, I'm an Oracle Certified Java Programmer. I have both theoretical knowledge and 5 years+ hands-on experience in Java programming. Already completed 10+ standalone applications with databases (MySQL). Check my portfolio for my past projects, sir(http://www.freelancer.com/u/rhkchathuranga.html). I already developed similar program to dial mobile and send sms using AT commands. USSD is very much similar. It is a bit difficult task to implement Serial port(Virtual) communication with Modem device in Linux using Java (There are many solutions for windows). Because it requires OS native access from JVM. But I have developed my above mentioned solution for Windows, Linux and Mac OS as well. So I'm sure I can do this (Because I already have a solution for Cross platform), and you will be well satisfied if you award this project to me. Please reply me with more details (with reloading USSD commands) if you are interested on me, then I can send you a sample program, before accepting me for this project. Bid amount is negotiable. Thank you very much sir...!!
$222 USD in 3 days
4.9 (35 reviews)
5.8
5.8
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I like to discuss further about the project details and deliver the working code to your needs .
$252 USD in 6 days
4.7 (28 reviews)
5.5
5.5
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Lets do it. It can be done easily. Please provide me your USSD dial code So I can test it at my end.
$222 USD in 7 days
5.0 (1 review)
4.0
4.0
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Hello, I am expert in Java/Swing/Core Java API and JNI when pure Java API's isn't adequate. I haven't ready solution. I'll investigate and try to implement your request. Regards
$194 USD in 20 days
4.4 (3 reviews)
3.2
3.2
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Hi, I have three year of experience in java and have ready made program to communicate with Modem with AT command. Let me know if you are interested. Also we can work on budget depends upon functionality you needs.
$250 USD in 3 days
4.9 (3 reviews)
3.0
3.0
User Avatar
Dear Sir Hi, Greetings of the day and thanks for sharing these details and allowing me to bid on this assignment. yes we have similar experience and can deliver u as u have mentioned in your requirements. we already have similar work experience and have worked on similar projects in the past and can deliver u as u have specified in your requirements I have checked your requirements. We have right skills to work on this assignment. We are a team of professionals including experienced analysts, designers, project managers, developers and QA people having great expertise in web applications development mainly on core PHP, PHP with open sources (Joomla, Wordpress, Codeigniter, Cake PHP), .NET, Asp.NET, Vb.NET, HTML 5 etc. and mobile applications on ios and Android platform. Links of Portfolio - can u provide your contact details for further discussion about the project I am ready to discuss with you Regards
$222 USD in 7 days
0.0 (0 reviews)
0.0
0.0
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I am a software developer who has 8 years+ experience in software development. I also also worked with giant players in software world like Microsoft, IBM and BT (British Telecom). I have previous experience with SMS handling application with Java using SMSlib framework. Let me know if you are interested. Regards, -Lasith.
$166 USD in 3 days
0.0 (0 reviews)
0.0
0.0

About the client

Flag of UNITED STATES
Staten Island, United States
4.3
20
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Member since Mar 8, 2010

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