Welcome to the future of call and message apps. GS CTC is a unique app which brings the best of the two worlds together. It lets you make and answer calls directly from the browser.

Why should you use GS CTC?

It's easy. All you need to do is click the link and it will send it directly to the grandstream. The only things that you need to configure is the IP you use for remote access. The extension is completely free to use and it works on all browsers, so even people who don't use android or iOS devices can still enjoy the convenience of using it.