Dear Hiring manager,
I have read and understand all the instructions provided in project description and very interested to work on this project.
I have experience in working with GSM / GPRS modems powered by AT-commands, and built professional applications using SIMCOM SIM900, and WaveCom Q2406 single port USB modem.
I have designed my own SDK in more than 6 months, and continuously upgrading the features. The library covers all of GSM Modem functions, USSD functions and responses, STK functions and resposnes, SMS/GPRS functions, Network responses codes, and short code response returned by Modem.
It also have functionality to identify Error responses and return exceptions, different network responses during USSD communication i.e: Network time out issues, Session Expiration, Network Errors.
My previous work in this field covers GSM/GPRS communication via SMS/MMS, USSD, and STK (Sim Application ToolKit) operations,You can see my previous work history in this field in attached document
So by all this experience provided in the attached document, I assure you that I will be a most suitable candidate for this job, and can provide solution in reasonable time.
Furthermore I am also available for at reasonable hourly rate in future for application maintenance/up gradation needed due to the changes made by network providers.
I expect to hear from you and discuss possibilities of working together. It is my guarantee that you will get high quality work if you hire my services
Thanks