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Affordable Telephony Services for Business Phone Systems

When you want to unify your business phone system, BTI Group is ready to provide you with high-quality and affordable telephony services.

Unify Your Company's Phone Network With Our Business Phone Solutions

BTI provides unified communications, presence, chat, and voicemail.

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Our Premier Unified Communications Solution: goodphone

As a telephony services provider, we’re proud to offer goodphone to our clients. This hosted solution has integrated softphone and smartphone technology, meaning our clients automatically receive access to cutting-edge unified communication features when they use it. Review the primary benefits and features of goodphone below:


Work from anywhere

Whether at the office, at home, or on the go, you can do everything you need.


Use Your Own Device

No need to purchase new equipment. Our solution works with most VoIP Phones.


Help When You Need It

24x7 US Based Technical Support for when you need us the most.

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User Web Portal

Take control and easily manage your whole system through an easy interface.

Call Recording

Record every call or just the important ones.

Video Conferencing

Collaborate anywhere and on any device. Easily join or schedule video conferences.

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Additional Business Phone Solutions

Alongside goodphone, we offer several more business phone system solutions to give you advanced telephony services. Learn more about these phone solutions below:


BTI's 3CX Unified Communications Platform rids the traditional PBX from the office and fully delivers a feature-rich and reliable solution that is software-based from within your office or strategically placed in the cloud.


Zultys develops products that enable companies and organizations to deploy integrated communications systems.

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Mitel's business phone systems cover a range of digital and IP phones, consoles, conference phones, and peripherals suited for businesses of all sizes and industries.

Top Features of Our Phone Solutions

When you turn to BTI Group for your business phone needs, you’ll receive several features designed to take your business to the next level. For instance, our Session Initiation Protocol (SIP) end-to-end solutions provide users with unified communications and applications for smartphones and PCs. Additionally, our many phone options are designed for seamless multi-site integration and exceptional reliability. 

SIP End-to-End Solutions

Since we rely on SIP end-to-end solutions for our VOIP office phone systems, we can provide our clients with exceptional features. Find out more about the main features you’ll receive when you use our SIP end-to-end solutions below:

  • Unified Communications: The future of telecom. Stay connected at all times, no matter where you are in the world.

  • User-Friendly Interface: Designed for ease of use so you can take full advantage of everything you pay for.

  • Visual Voice Mail: See your voicemails as emails within seconds of them being left, allowing you to answer your voicemails from anywhere.

  • Communicator Applications for PCs and Smartphones: Incredibly flexible interface allows you to not only see who is available in your company but also control day-to-day functions.

Many Phone Options

Alongside our SIP end-to-end solutions, our business phone systems come with many options. Since we offer various phone systems that feature robust capabilities, we can offer unique benefits to your business. Review the following benefits of our phone options:

  • Seamless Multi-Site Integration: Use phones from Zultys, Mitel, Yealink, or bring your own device. Our multi-site integration solutions allow your employees to easily see who is available no matter which office they are in.

  • Amazingly Simple Use: Our business phone systems are as easy to use as the regular phone you've been using for years, but with a much more robust feature set.

  • Simplified Deployment: Since the system is Hosted VoIP, there is no need for tons of clunky on-premise hardware. Just plug the phones in and go.

  • Rock Solid Reliability: With the hosted nature of the system, many problems that you encountered with the POTS network are a thing of the past.

Schedule a Free Business Phone System Consultation Today

Ready to receive all the benefits of our telecommunications services? All you have to do to unify your company’s phone network is contact us.

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Multiple Locations to Better Serve You

BTI Downers Grove

1441 Branding Ave Suite #200

Downers Grove, IL 60515

p. 312-432-5300

BTI Santa Fe Springs

12155 Mora Drive, Suites #1&2

Santa Fe Springs, CA 90670

p. 562-298-5000

BTI Phoenix

615 N 48th St, Suite #1048

Phoenix, AZ 85008
p. 800-435-7284

  • Itemized and fully transparent quote with no hidden costs or fees

  • No charge site survey

  • Detailed scope of work and review of the recommended solution

We will provide the following at no cost:

Start With A Free Consultation

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