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Business Communication Solutions

Unified communications for business, 24/7 support, and no up-front costs. A full 360 approach.


From the west coast to the east coast, your clients will be serviced on-site, with our premium installers. 


We ensure your customers have the highest quality endpoints from Yealink & Polycom.

Hands Off

CallHarbor strengthens your business with some of the highest commisions in the industry.

Trusted by amazing companies

Moves with you

CallHarbor moves with you, from your desk at the office, to your laptop in the hotel, or your mobile phone while at a client’s site. Keeping you and your team connected at all times is our priority, and our unified communications make it easy to do just that. You won’t have any issues moving from place to place while staying connected, which in today’s demanding business environment is necessary.

Feature packed

Our Call Center Functionality, Unlimited Calling, and Full Unified Communications put us above the rest. Gather detailed statistics on your agents calls, monitor service level statistics, and receive detailed email reports. Enjoy unlimited domestic and long distance calling, along with some of the lowest cost rates on international and toll free. CallHarbor features an industry leading mobile app, web-softphone, video calling, chat, and SMS.

VOIP phone system

Customized to your needs

CallHarbor does not limit the amount of Queues, Auto-Attendants, Parking Lots, or Users your system can have. This makes it easy to start small and grow big. We’re with you every step of the way. Our hardware is also customizable, with different styles and functionalities, and add on expansion modules and conference bridges. We can help you find a solution perfectly tailored to your needs.

Our clients words mean the world to us

CallHarbor allowed me the flexibility needed by setting up our phones in our home. They gave me easy instructions and made themselves available every step of the way.

Sam Abbas

Owner, Brome Modern Eatery

Buying CallHarbor through GTS gives us the ability to provide a zero cost VoIP migration for our customers. Together, we made hosted VoIP dead nuts easy.

Mac Nutter

Owner, Proactive Management

I recently switched my small business to CallHarbor and couldn’t be more pleased. The team at CallHarbor helped make the switch seamless and efficient. A special call out to Joe Nasser at CallHarbor for all of his help!
Bill Burnett

Goldfish Swim Schools

Frequently Asked Questions
Can I keep my existing numbers?

Yes! You can bring over all of your existing telephone numbers for free. We include as many phone numbers as you need with your platform.

How fast can CallHarbor be setup?

Bringing your own hardware? CallHarbor can be spun up in as little as a day. Looking for new hardware? We can get you up and running in as little as 5 days. We strive for the fastest turn-arounds in the industry without sacrificing quality.

What areas do you service?

We provide service across the entire United States. We also provide free on-site installation throughout all of the United States. You can rest assured we have your back, no matter where you’re located.

Who installs the CallHarbor system?

One of our knowledgeable professionals will complete a free on-site installation for you, as well as on-site training for all of your employees.

What are your support hours?

Our top-tier support is available 24/7 on our support line: 313-263-3663 x2 or dial 611 from your CallHarbor phone. You can also reach us by emailing, submitting a web form at, chatting with us from the website or your customer portal, or sending us an SMS with the word “HELP.”

Can I bring my own hardware?

Yes! Any SIP compliant hardware can be utilized with the CallHarbor system. We provide the highest level of support for Yealink, Polycom, Grandstream, Cisco, Htek, Avaya, and Snom.

Schedule a personalized demonstration & get a proposal

4 + 9 =

Our team of communication experts will walk you through our platform, demonstrate our award winning features, and even provide a trial account for you. 

All of our demonstrations are of live systems, and we can also provide free trial accounts.

VOIP Phone system