Telzio

Telzio

Phone systems in the cloud

55 ratings
26 reviews
Free

Details

  • Released
  • Updated
  • January 11, 2015
  • May 27, 2026

Features

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About

Manage your business phone system directly from your mobile device. Make and receive calls, send texts, and transfer live calls using your business number. Access voicemails, customize greetings, and handle calls with professional features.

Voice calling and text messaging
Transfer live calls
Business number as Caller ID
WiFi or cellular calling
In-app voicemails
Manage greetings and call handling
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What's New in Telzio

5.4.7

May 27, 2026

This update improves calling reliability and app stability on iOS. • Fixed an issue where ending a call could trigger an app crash during the in-call screen transition. • Fixed an issue that could prevent later attended transfers from starting correctly. • Optimized the Queues screen to reduce the chance of slowdowns or crashes.

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User reviews

Android Version

You can’t change ring style on Android phones. So if you have an Android phone all you will get is a single vibration with NO ringtone. NEED ANDROID VERSION TO RING WHEN CALLED!!

Customer service don’t follow thru. Ringer sound is quiet

Customer service said they would send me an email for sms and didn’t. The ringer is only ringing through the ear piece and our calls are very vital to the company to answer them.

Manager

The Telzio mobile app has been a huge help for my business. It’s super easy to use and makes managing calls and messages so much smoother, especially when I’m on the go. Features like SMS collaboration and quick access to our company directory have really kept my team connected and productive!

This app doodoo

This app doodoo and I need the world to know. Dropped calls constantly, can’t send images, clunky app. It’s actively makes my day worse when in use it.

Eh

Probably good if you are an office and just need to forward calls to different offices. Does not allow grouped communications or text conversation forwarding. No ability to track and store analytics by location or type. Lots of bugs on cell phones. Issues if you have vpn.

FAQ

What does the Telzio mobile app do?

The Telzio mobile app allows you to use your business phone number on your smartphone. You can make and receive calls, send text messages, and manage your business phone system features directly from your device.

What are the key features of the Telzio app?

Key features include enabling voice calling and text messaging with your business number, transferring live calls, displaying your business number as Caller ID, making calls over WiFi or cellular, receiving voicemails in the app, and managing greetings and call handling preferences.

Is Telzio free to use?

The Telzio mobile app itself is free to download and use. However, it requires an active user account with Telzio. All Telzio plans include unlimited users and professional features, with pricing available on their website.

What kind of phone numbers can I get with Telzio?

Telzio plans include local, toll-free, and international phone numbers. You can also set up custom phone menus, business hour filters, and manage extensions for your employees.

Can I use Telzio for international calls?

Yes, Telzio offers international phone numbers and supports international calling. The app allows you to make and receive calls over WiFi or your cellular network, making it a versatile solution for businesses with global reach.