// Initiate a call. Call the login API before initiating a call. tcccSDK.login
tcccSDK.call({
  to: '134xxxx',        // Contact number (required)
  remark: "xxx",        // Number remarks, which will replace the number displayed in the call bar (optional)
  uui: "xxxx",          // User-defined data (optional)
}, (code,message) => {
  if (code == TcccErrorCode.ERR_NONE) {
    // Initiation succeeded
  } else {
    // Initiation failed
  }
});
// End the call
tcccSDK.terminate();
// Answer the call
tcccSDK.answer((code,message) => {
  if (code == TcccErrorCode.ERR_NONE) {
    // Answer succeeded
  } else {
    // Answer failed
  }
});