GTB has partnered with ESI to deliver the award-winning ESI Phone Systems. ESI designs and manufactures high-efficiency, low-cost business telephone products. These products have earned numerous product awards from industry publications.

GTB has partnered with Raindance to offer audio and web conferencing solutions for more effective web meetings. Our integrated web, audio and internet video conferencing makes online meetings and webinars easier and more productive.

MetaSwitch develops the award-winning softswitch solutions which enable service providers to deliver a wide range of VoIP, legacy TDM and next generation telephony services.

ADTRAN is a leading global provider of networking and communications equipment that enables the delivery of voice, data, video, and Internet services for businesses and service providers.

Objectware Inc is a software company specializing in the development and hosting of custom Web, Mobile and Wireless applications.

GLY Technologies, a sister company of GTB, is an IT and Network support company, specializing in small to mid-sized businesses. GLY Technologies provides a range of IT support to GTB and its business customers, combining the much needed stability with the cutting edge technology solutions.