![HID Global Improves Mobile Ticketing for Public Transportation with the World's First Calypso-Certified Software Development Kit for NFC-Enabled Devices | Business Wire HID Global Improves Mobile Ticketing for Public Transportation with the World's First Calypso-Certified Software Development Kit for NFC-Enabled Devices | Business Wire](https://mms.businesswire.com/media/20210914005198/en/905609/5/cc-calypso-sdk-social-post-tw.jpg)
HID Global Improves Mobile Ticketing for Public Transportation with the World's First Calypso-Certified Software Development Kit for NFC-Enabled Devices | Business Wire
![Smart Ticketing Alliance launches a European certification process for contactless ticketing equipment and media | Nextendis Smart Ticketing Alliance launches a European certification process for contactless ticketing equipment and media | Nextendis](https://www.nextendis.com/wp-content/uploads/2016/07/news1-624x156.png)
Smart Ticketing Alliance launches a European certification process for contactless ticketing equipment and media | Nextendis
![STMicroelectronics Reveals World's First IndependentCalypso Revision 3 Smart-Card IC, Supporting Next-Generation Services for Metro Travelers - 뉴스와이어 STMicroelectronics Reveals World's First IndependentCalypso Revision 3 Smart-Card IC, Supporting Next-Generation Services for Metro Travelers - 뉴스와이어](https://file.newswire.co.kr/data/datafile2/thumb_480/2011/08/238345238_20110816115948_1292279291.jpg)