top of page


At Yeastar, we strongly believe that small and mid-sized business communication needs to be simpler, more reliable, and more cost-effective.

Our VoIP PBX & Gateway solution empowers you and your business to improve efficiency and reduce communication cost with new levels of quality and experience.

Yeastar Courses

GTTCO Yeastar Certified Technician Courses are presented by our Yeastar Certified Trainer.

The courses focus on the configuration of Yeastar's products.

Gain background knowledge of VoIP (Voice over IP) as well as valuable hands-on configuration experience of the system, from the ground up.

bottom of page