The Sapphire SIM Function Library provides the Visual Studio developer with the ability to manage the SIM card of a Windows Mobile Pocket PC Phone Edition or Smartphone device. It enables the user to add change and delete contacts from teh normal and fixed sialling areas of the SIM card. The utility can also initiate a phone call and enable or disable the fixed dialling features. The Sapphire Sim Function Library makes SIM card management easy with features such as Making a phone call Adding Updating and Deleteing a contacts to the SIM card and Enabling or disabling fixed dialling amongst other. Royalty Free Licence. When you purchase a developers licence you are free to use the DLL in any number of your projects and deploy it to all the devices to your clients. Theres no need for royalties based on the scale of your project just a one off fee. You will also get 12 months email support and discounted upgrades for future developments.