I am new to symbian. I am devloping a symbian application for S60 3rd Edition (MR). This application needs G729 functionslity. I am using APS (audio proxy server) support by Nokia phone.

After successfully building the application, tried to install the .sisx file in my Nokia phone. It complained of certificate error.

I hope I need just a certificate to test my application. How to prooceed I do not know. Can somebody helped me here how can I get a developer license, so that the application I have developed will install.