Microcrystal Merged Communication Platform (Telephone)FunctionA USB cable connect the phone and the computer, via software to provide various services ( software interface demonstrate below, like record, name card management , individual vibrating ring music setup, daily remind )Establish a bridge between the SP and the user (Support Skype etc VOIP operator , only provide API function interface to us will be ok.)PSTN basic phone function, keep 40 groups incoming numbers and 20 groups outgoing numbersAbundant value-added service