When Tully Corbett founded IS-Technologies in 1999, he recognized the critical need for a company that could combine leading-edge technology with top quality service and customer support. While our name has changed the core principles have not. IS-Talk is positioned as an industry leader based on those same principles and determination to keep pace with an ever-changing industry, making the latest solutions available to our customers at all times. 


Seeing the coming changes in the telephone industry allowed IS-Talk to deploy it’s first hosted telephone solution in 2008 well ahead of other companies. Since that time we have grown to have a large customer base that spans across the United States with companies of all types both large and small.


Since 1999, IS-Technologies has built a team of professionals in the communication industry dedicated to the highest levels of customer support.​


We’re a company committed to establishing dynamic partnerships with our clients by fulfilling all of their business telephone solution needs.

Our Team


Tully Corbett

Founder & Big Chair Occupant Tully started in the communication industry in 1985 as a cable installer. Since that time he has basically performed every role there is in a communications company: Installer, service tech, systems programmer, sales and administration. After working for several companies he felt that he wanted to take ownership of his actions and do things his way. On February 1, 1999 IS-Technologies, Inc. opened it’s doors. For 20+ years IS-Technologies, Inc. has grown to be a leader of business communications in Birmingham and central Alabama. Tully still stays involved in every aspect of the business so do not be surprised if he shows up at your office working a service ticket or answers the phone should you call!

Teresa Rush

General Manager & Keeper of Knowledge

Teresa started with IS-Technologies in 2000 in a sales position but quickly became key to the day to day operations of the business. Her background in medical practice management proved to be such a huge asset she was moved to administration/accounting. Her knowledge of all the systems we sell and service is legendary and she is our “Go-To” person for programming and when users have questions.


Collins Harwell

Field Tech & All Around Do Anything Guy

Collins is our “In the Trenches” Field Tech. He has mastered the cable installation process and ESI product line. He is a rising star and an important part of the IS-Technologies Team.


Debbie Corbett

Admin & Accounting

Debbie joined the IS-Technologies team in 2018. She took to our company like a duck to water and is the main contact for billing and invoice questions.  If she does not know the answer she will do whatever it takes to find the answer. We are thrilled to have her on our team.