Commercial Telephone Systems

Call Directions Website Contact the business

Commercial Telephone Systems Avaya and ESI Business Partner

Commercial Technology Solutions Service is the motivating factor in our business. Stability

Since 1974 our name has not changed.

Service

For over 40 years, Commercial Telephone Systems has been providing communications solutions and services to businesses in Missouri, Illinois and throughout the United States. During that time CTS has satisfied thousands of customers by meeting their specific needs one customer at a time. CTS will respond to major problems within two hours and minor issues usually that same day. Our technicians are exceptionally well qualified and friendly. We take pride in giving you the prompt attention you deserve and should expect from your communications source. Solutions

We pledge that our sales staff will listen carefully to your needs and propose a solution customized to your business. As an independent dealer of data and telecommunications equipment CTS is able to provide the best solutions for your business requirements. Your communications solution will adapt to new technology and keep your business ahead of the curve. CTS can typically implement small solutions within days of your approval and larger solutions often within a couple of weeks. Our focus has been clear. That kind of constant presence is rare in the communications world. When you establish your relationship with CTS you can have peace of mind that the next time you need us you will find us to be just as available and accommodating as the first time.

Contact Commercial Technology Solutions for all of your communication needs.  Ready to move to the CLOUD?  We can do tha...
10/13/2026

Contact Commercial Technology Solutions for all of your communication needs. Ready to move to the CLOUD? We can do that! Need your networking updated? We can do that! Need CAT6, Fiber, or Coax ran? We can do that too!

888-452-3550 www.ctsphone.com

Take a moment to thank a Fire Fighter, check your extinguishers & smoke alarms. And teach your children about Fire Safet...
10/09/2026

Take a moment to thank a Fire Fighter, check your extinguishers & smoke alarms. And teach your children about Fire Safety!

Have a great weekend!

Call to speak to one of our knowledgeable sales team members for a free quote.  www.ctsphone.com  888-452-3550
10/08/2026

Call to speak to one of our knowledgeable sales team members for a free quote. www.ctsphone.com 888-452-3550

No matter the size of the job, our reliable & professional sales team and technicians will work together to give you the...
10/06/2026

No matter the size of the job, our reliable & professional sales team and technicians will work together to give you the install you need.

www.ctsphone.com 888-452-3550

Modernize your communications with an updated system.  Installed by a local reliable company!  www.ctsphone.com   888-45...
10/05/2026

Modernize your communications with an updated system. Installed by a local reliable company! www.ctsphone.com 888-452-3550

Have a great weekend!
10/02/2026

Have a great weekend!

Thank you Walker & Williams!
10/01/2026

Thank you Walker & Williams!

With over 50 years of service in the Metro St. Louis area, you can count on CTS to meet or exceed your expectations!  Ca...
09/30/2026

With over 50 years of service in the Metro St. Louis area, you can count on CTS to meet or exceed your expectations! Call us for a free site survey or quote!
www.ctsphone.com 888-452-3550

Give your employees more flexibility to work remotely with ELEVATE Cloud Solutions!  For a free quote call us at 888-452...
09/29/2026

Give your employees more flexibility to work remotely with ELEVATE Cloud Solutions! For a free quote call us at 888-452-3550 or visit our website at www.cts.phone.com.

I have been with CTS since August 2016. My official title is Dispatcher. I do just about everything from keeping the com...
09/28/2026

I have been with CTS since August 2016. My official title is Dispatcher. I do just about everything from keeping the company fish and plants alive (if I can) to answering a technical question when you call. When you call into the office, 9/10 time’s I will be the one answering your call. Sending an email to [email protected], I will likely be the one answering you back. CTS has been a great company to work for.

Address

100 Regency Centre
Collinsville, IL
62040

Opening Hours

Monday 8am - 4:30pm
Tuesday 8am - 4:30pm
Wednesday 8am - 4:30pm
Thursday 8am - 4:30pm
Friday 8am - 4:30pm

Telephone

+18884523550

Alerts

Be the first to know and let us send you an email when Commercial Telephone Systems posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Contact The Business

Send a message to Commercial Telephone Systems:

Shortcuts

Share