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About Us

Commercial Technology Solutions (aka Commercial Telephone Systems) is an Avaya Business Partner which means we are authorized to sell you quality phone equipment, provide phone system maintenance and warranties with your purchase. Our Avaya-certified technicians and highly supportive staff are here to support you with any technical difficulties you may encounter. At your convenience, we also maintain and install the following phone systems; Avaya, ESI, Partner, Merlin Legend, Nortel, Norstar, and more.

Cts Products

CTS has been delivering excellent networking and business phone system maintenance and installations in the St Louis area and Illinois since 1974. We have been effectively providing great customer satisfaction by either working remotely or on location. Whether your service needs wiring, installation relocation, programming, or training, CTS’s highly-qualified technicians will ensure that the job is completed to your satisfaction.

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Services and Maintenance

Need expert support for your current business phone system or network? Looking to upgrade to a new one? Trust Commercial Technology Solutions (CTS) for all your phone system needs. Our team of highly trained professionals are available to assist with any questions or concerns you may have, whether it's a simple inquiry or maintenance for your existing phone system. Don't hesitate to reach out to us, we're here to help!

Service

Since 1974, Commercial Technology Solutions (CTS) has been delivering superior communication solutions and networking services to businesses across St. Louis Metro area and Illinois. Our relentless focus on customer satisfaction has earned us a reputation for excellence, as we’ve met the unique needs of each and every one of our thousands of satisfied customers. At CTS, service is always our top priority, which is why we promptly respond to both major and minor issues, with most being resolved on the same day. Our highly qualified and friendly technicians are dedicated to providing you with the prompt, reliable service you deserve. Choose CTS as your trusted communications source.

Solutions

At Commercial Technology Solutions (CTS), we’re committed to delivering customized communication solutions that meet the unique needs of your business. As an independent dealer of data and telecom equipment, we have the flexibility to offer the best options for your specific requirements. Our sales team will take the time to listen to your needs and recommend a tailored solution that keeps your business on the cutting edge of technology. With the ability to implement smaller solutions within days and larger projects within several weeks, you can count on CTS to keep your business connected and ahead of the competition.

Stability

We have been a reliable provider of phone system maintenance and networking services in the St Louis area and Illinois. Our unwavering focus on customer satisfaction has made us a trusted name in the communications industry. By establishing a relationship with CTS, you can enjoy peace of mind knowing that our exceptional services and technical support will be available and accommodating every time you need them. Don’t settle for less, choose CTS for unparalleled phone system maintenance and support.

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TESTIMONIALS

SEE WHAT OUR CLIENTS SAY

Patrick Fischer, Company: City of Collinsville

CTS was great to work with from beginning to end. They helped design a great city-wide phone system solution for us and saw it through. Ron and Geoff were great to work with and always answered my questions in a timely manner. I would recommend them to anyone.

Jacqueline Bettale, Company: The BackStoppers

Darryl was just here at The BackStoppers office where we have been without phones and internet. While it was very minor repair, he was great--prompt, courteous and we are back up and running. Very happy with the service from CTS!

Beth Anne Stooksbury, Company: Orthopedic Center of Illinois

Darren Windau is AWESOME! In just a few minutes, he gave us some much more functionality that we were unaware of. THANKS, DARREN!!!

Christine, Company: Leshers Flowers

We recently had the ESI-50 installed. With a small family business this phone system is a perfect fit. Love all the features. Installation and support have been great. Thanks for moving us into the 21st century!

Erin, Company: Insurance Advisors

As our old phone system was failing fast, we researched a few phone systems with different companies. CTS came in with a great presentation, presenting all of the options available. Not high pressure sale. After going with CTS, a tech came in and gave us hands on training with the new phones. As always happens, more questions came up next couple of days. We contacted them and they addressed right away. A couple tweaks were able to be done remotely. Love the new system.

Dorothy, Company: Muenks Tax Company

Our old phone system was quite out of date and we were no longer able to use it in the manner we had hoped. We are so happy with our new system from CTS. The installation process and troubleshooting has been a breeze and their response to our individual needs superior. It is a relief having a system we can utilize that serves our office and our clients. We look forward to a long relationship with CTS. Thanks for a job well done!

Rosemary Whitehead, Company: Sun Valley Adult Care Center, Inc

Our experience with CTS has been outstanding, from the sales person to the installer. They were quite pleasant and knowledgeable. The installer took the time to train us in the use of our expanded system. P.S. Geoff is a true asset to CTS due to his outstanding customer service.

Lisa, Company: Walker & Williams, P.C.

It was a pleasure working with CTS on our new phone system install. They really went out of their way to work around our schedule and made the transition easy for us. It didn't take long at all to get use to the new system. The Administrator software is a great feature. Great service, Great equipment!

Jason Vaughn, Company: Granite City School District

We have been working with CTS for over a year using a new system at one of our locations and have used their support repeatedly during that time. This Summer, we expanded to our 10 other buildings and were not let down. Darren and Dan are great to work with and are very flexible. Every single office receiving new phones commented on how great training was with Darren. We've had a few glitches, but CTS has been on it and we have no plans of going anywhere else with our support needs.

Anonymous, Company: Trinity Lutheran Ministries

One day before the 2016/17 school year, our entire telephone system decided it was time to take early retirement. A call to CTS resulted in a a same day quote, and next day service. By the time that first 1/2 day of school was over, Darren and Tom had a new system installed and operational. In spite of this emergency situation, CTS took the time to make sure that we not only had the capabilities back that we had before, but could leverage several improvements available in this new Avaya system. And throughout the process, Darren's patience and thoroughness, and Tom's diligent and fast installation work, helped us know that CTS was turning this disaster into an unexpected blessing to our church and school.

Anonymous, Company: Berry & Silberberg LLC

CTS has been a pleasure to work with from beginning to end. Dan and Tom helped assist the needs of our office, work through the install and training, and consistently answered our questions promptly. We are so pleased with our new ESI system and with CTS. I would highly recommend them.

Anonymous, Company: Beno J. Gundlach Company

Another awesome experience working with CTS! We asked Darren if they could install a new time clock on our network. It was not even their product but, Tom was here the next day and had us up in running in an hour. We highly recommend CTS for phone system solutions and really, help with any network devices. Thanks Darren, Tom and all at CTS!

Jeff, Company: Belleville Area Special Services Cooperative (BASSC)

Working with CTS for our new phone system was a very positive experience. From sales to installation to follow-up support..........everything has been top notch. They gave us various options to accomplish our goals and were extremely patient and thorough in their response to our questions and post-implementation needs. I would certainly recommend CTS for any entity similar to us with phone needs.

Anonymous, Company: East St. Louis Housing Authority

I am happy to announce that we just installed our new AVAYA Phone System. Having CTS as our vendor made the transition painless. We have been working with CTS for at least 20 years on an old Legacy system. CTS supported us on it and kept the the system going even though a few times I thought it was just going to die. They stood by us until we were ready to upgrade our phone system network. The staff is very professional, pleasant and will work to resolve the issue. I would most definitely recommend CTS to installed and support a phone network. Thank you CTS!

Erin, Company: Insurance Advisors of St Louis

Our current phone system failed with no warning. CTS responded promptly and we were able to work something out and they were at our office that day with a new phone system. The other companies I had checked with were not responding as fast along with wanting to sell us an elaborate system we did not need. Only CTS understood the importance of us having our phones up and running as soon as possible. We were trained that day and with some additional questions coming up during the following week, the whole team demonstrated knowledge of the product and great patience. It is great to know they are their for support and respond within minutes. Would I recommend? Definite yes