Asterisk is an open-source framework that helps to build communication applications and is used by small, midsize and large companies and governments worldwide.
OpenTouch Office Cloud is a bundle of enhanced and personalized applications for data center transformation and voice unified communications for small to medium-sized businesses.
Hypertext Markup Language (HTML) is the standard markup language for documents designed to be displayed in a web browser. It can be assisted by technologies such as Cascading Style Sheets (CSS) and scripting languages such as JavaScript.
YouTube is a video sharing service where users can watch, like, share, comment and upload their own videos. The video service can be accessed on PCs, laptops, tablets and via mobile phones.