(586) 439-2000

Unified Communications

Voice • Networks • Security • AV

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Cloud Business Phone Systems
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Local Services & Support

Metro Detroit's Leading Unified Communications Services Provider Since 1987

Unified Communications

Whether on-premise, cloud, or hybrid integrate unified communications (i.e., voice, video, messaging, etc.) into a seamless user experience. 


Network infrastructure services to improve productivity, network security, and end-user experience.

Physical Security

Physical security services including business security camera systems, HD video recording & playback, and door access control systems.


Industry-leading network and endpoint security, secure Wi-Fi, multi-factor authentication, and network intelligence.

AV Solutions

AV solutions for the boardroom, conference room, and classroom including scheduling, displays, microphones, and sound systems.

Need help with your unified communications, network, audiovisual, physical or cyber security?

Why Do Business With CIT?

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The majority of our customers come to us through referrals. At CIT, customers and employees are families and we pride ourselves on being responsive and caring.

We value our customer relationships and recognize that our reputation is what separates us from other service providers.  You can count on CIT to deliver because:

What Our Customers Are Saying

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Janis Ross

Alliance Health

“Without a doubt, hands down, CIT has provided us with “EXEMPLARY” customer service. Their technicians, both in and out of the office, are phenomenal and are always there when I needed them, day or night.”

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Nicole Czajka

Thee Office Pub

“CIT has been a great company to work with. We started out with their hosted phone system and have been very happy with the service and installation. We have since upgraded our camera system with them. Wow! What a great system. We are amazed at the quality.”

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Briana Koehn

Habitat for Humanity, Macomb County

“Passionate about what they do and the communities they serve. Great people all around and a great service they provide! Highly recommend the CIT team!”

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Craig Como

Como Pediatric Communication Center

“Customer service is a lost art, but not at CIT. They have been fantastic for our business. So grateful for their efforts.”

Ross Mortgage
St. Clair Orthopedics
Sterling Heights Chamber of Commerce
St. John Providence
Wilson Veterinary Hospital

Where We Do Business


Providing insurance agents and brokers with reliable business phone systems and networks to drive new business development and support customers.


Providing schools with unified communications and security systems to control access and ensure the safety of students, teachers, and administrators.


Providing law firms and legal practices with business phone systems and network infrastructure to provide high-quality legal counsel and increase billable hours.


Dental and medical practices require bandwidth, high-quality phone systems, and physical security systems to deter crime to grow and thrive.


Providing local government agencies, courts, and law enforcement the phones, network, and security needed to serve the citizens of Michigan.

Frequently Asked Questions

Unified communications (UC) integrates multiple enterprise communications channels, such as presence, voice, video conferencing, email, messaging, and content sharing into one seamless platform. This enables users to use the communication method that best meets their needs at any moment, while being kept aware of communications on other channels.

The three main components of unified communications are voice, video-conferencing, and messaging. However, other components such as presence and email integration create a richer user experience.

UCaaS (Unified Communications as a Service) combines voice, video conferencing, messaging, and other enterprise communications methods and integrates them into a seamless cloud-delivered service. 

Only 48% of SMBs believe their existing communications tools are adequate for work-from-home