Empowering Business With Communication
TSI is the leading communications specialist providing unmatched quality service and products for Northwestern Wisconsin & the Chippewa Valley.
Learn more on how to improve your business's communication when partnering with TSI.
Quality Service Built For Business
At TSI, we pride ourselves on providing all of our clients with unmatched quality products, along with service and maintenance that businesses can't find anywhere else.
We are founded on service, it's who we are.
Enhancing Communication with MiVoice Office 250


MiVoice Office 250
Offering advanced communication capabilities & cost savings for businesses with up to 250 users, Mitel MiVoice Office 250 gives you the flexibility to tailor a small business phone system to suit your dynamic needs.
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MiVoice 5360e
The MiVoice 5360 desktop IP phone has a large, high-resolution touch display, superior sound quality and several built-in features that make it ideal for executives and managers.
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MiVoice 5340e
The MiVoice 5340e IP phone features a large backlit display, productivity applications, embedded gigabit support, and 48 self-naming keys.
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MiVoice 5330e
The MiVoice 5330e IP Phone is a full-highlight, applications phone that components a vast display, implanted gigabit backing, and 24 self-marking keys that can be modified as speed dial keys, line keys, or include access keys.
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MiVoice 5320e
This full-feature, entry-level display phone is great for businesses that need important communications applications and services on the desktop.
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MiVoice 8568
The MiVoice 8568 Digital Phone is ideal for clients in small and medium sized businesses. It features a six-line display with 16 programmable multifunction keys.
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MiVoice 8528
Ergonomically composed, this telephone highlights a two-line by 16-character display for profitability improving data, such as caller details and call feature activation.
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MiVoice 5304
MiVoice 5304 IP Phone is an affordable and basic display phone with a little base, making it ideal for classrooms, guest rooms, stores, and teleworkers.
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We are here for all your communication needs. It's our promise to be available whenever you need us. Give us a call or send us a message, it's that easy.
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