A complete business phone system, in an app.

Tresta is a no-hardware, business phone and messaging service for iPhone, Android and the browser.

Use your number on any device and route calls professionally.
Text on both private numbers and shared numbers for teams.

Save contacts to private and shared address books. 📇

Stay on top of call volume and trends with built in reporting.
Get a new phone number or bring one you already have.
Protect yourself with automatic spam detection and blocking.

Try Tresta for free.

Get a phone number and access to our platform for 7 days to test-drive Tresta and see if it's right for you.

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iPhone displaying Recents screen of Tresta mobile app

Trusted by thousands of companies for their business phone system.


Launching your new idea and starting a business? Set your company up for success with a phone and messaging system that will help you grow! 📈

Small businesses

Thousands of small businesses like yours choose Tresta because it's simple and easy to setup, with amazing web and mobile apps and outstanding customer support.

Professional services

Business professionals are embracing the flexibility that a cloud phone and messaging system provides, with the ability to work from anywhere, on any device.

Everything you need in one simple app.

Tresta brings all your business calls, texts and contacts together into one easy-to-use app that works anywhere and can be managed by anyone.

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Calling, texting and contacts

Tresta is one simple solution for all your business calls, texts and contacts. Manage your phone numbers in our easy to use web app, and call and text on any smartphone with our mobile app for iPhone and Android.
Call, message and contact icons around the Tresta logo
Auto attendant example

Professional routing

Route phone numbers directly to users or teams to create direct lines, or create a main company phone number that everyone shares – an auto attendant will route callers to their desired user or group by dialing an extension or by navigating a menu of options.
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Flexible users and groups

With Tresta’s groups, it’s easy to add departments and teams to your call flows. Each group includes a shared voicemail box that everyone in the group can access, as well as options for call distribution and text routing.
Inferface user and group details
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Local and toll-free numbers

Tresta offers local and toll-free phone numbers throughout the United States and Canada. Numbers can be used instantly, and you own the numbers – you’re free to port them out at anytime.
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Interface blocked phone number robocall example

Automatic spam blocking

One of the added benefits of having your phone number with Tresta is its automatic spam blocking. Automated spam calls are out of control, but with Tresta’s human detection feature, you can finally put an end to robocalls. 📵

iPhone with purple case displaying Recents screen of Tresta mobile app
Interface allowed call from contact example
Interface blocked phone number robocall example
Interface blocked phone number example

Start your free trial today.

Create your free account to see why 9 out of 10 people who start a free trial become customers.​

No contract
Monthly billing
Cancel anytime
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iPhone Messages on device

Backed by amazing support.

Our team of friendly, helpful product specialists is here for you with amazingly personal support for your business phone system.​

Tresta Employees

Frequently Asked Questions

Tresta is your best solution for a business phone system. Turn your smart phone or computer into your business communications platform with powerful calling, messaging, contacts management and productivity tools to support your company. Tresta has everything you need for better business calling and texting in one simple app: call menus, schedules, call groups, call forwarding, auto attendants, custom greetings, automatic spam call blocking and more.

Experience it for yourself. Start your free trial today.

Tresta is a business phone system that provides everything you need for better business communications. With Tresta you have the ability for business calling and text messaging in one simple app as well as reporting and analytics, automatic spam call blocking, contacts management and a full suite of phone features to elevate your business. Ready to get started with Tresta? Learn more with a 7-day free trial.

Tresta has super simple pricing. There are no confusing plans. You don’t have to worry about trying to use a feature that isn’t included. No metered minutes or texts. Your bill only changes when you add or remove users or numbers. Get business calling and messaging, contacts management, reporting and analytics, automatic spam call blocking, custom greetings, auto-attendants, phone extensions, call menus, scheduling, call groups, voicemail, call recording, call forwarding, and more. Tresta’s business phone system provides everything you need for better business calling and texting in one simple app.

See why Tresta is the best business phone system. Get started today.

Tresta is available on any web browser and all smartphones.

Download the Tresta virtual phone app for iOS and Android and turn any smartphone into your business phone system. Call and text on your business number from anywhere without additional hardware or equipment.

Access you Tresta account via your web browser to manage users, configure features, web texting and viewing your analytics.

Ready to get started? Download the app and start your free trial.

Absolutely! Tresta has a free 7-day trial period for you to explore all the features and functionality of the mobile and web apps. Set up your team, add numbers, and establish workflows, groups, and greetings for your company. Tresta’s business phone system does much more than placing and receiving calls and text messaging. Manage your business contacts, set up call menus, utilize auto attendants and voicemail as well as view your communications analytics.

With Tresta, there are no contracts, obligations, or long-term commitments. Add or remove users and lines at any time or cancel if the timing is no longer right for you.

To experience it for yourself, start your 7-day free trial so you and your team can set up the tools specifically for your company’s needs.

Tresta offers you the freedom and flexibility to use any smartphone for your business phone system and you can get it set up instantly! Get a new local, toll-free or vanity number now, or port over an existing number within a short time. You can start the process immediately and even test the service free for 7 days.

After your trial period, pay a flat monthly price for each user and phone number on your account.

Experience Tresta for yourself.

You’re free to cancel or modify your service at any time. We strive to provide the best cloud-based business phone system on the market. We understand that situations and markets change, and we also respect that we may not be able to meet all your current needs. Our goal is that you have the best tool for your company, and we want to win your business each month. Tresta does not require any contracts or commitments. You can manage the number of users and phone lines yourself via the web app and if you are interested in canceling your service, you may do that at any time as well. If you prefer, you can also call our Customer Service team at +1 (844) 2-TRESTA to make changes. Tresta is dedicated to making sure you are happy. Now that you understand that there are no obligations, start your free trial and see the product for yourself.

Watch our 2-minute video to see all Tresta can do for your business.