Outbound Calling

Telzio enables you to make outbound calls from your Telzio phone number using the Telzio app, IP phones, and softphones.

Before you can get started with outbound calling, here are a few important notes:

  • Telzio is an internet-based phone service, which means you can make calls from anywhere your device has internet connectivity.
  • In order to make outbound calls, first you need to create a User for your phone system.
    Learn more about creating Users.
  • Telzio support unlimited concurrent calls, which means all your employees can make calls using a single Telzio phone number without callers experiencing a busy signal. With Telzio, there is no need for rollover lines.

IP Phones

Telzio works with a wide range of IP phones, including desk, wireless, and conference phones. You can browse our shop and order preconfigured phones that arrive ready for calling. If you need help choosing the right phone for your business, our supporters are happy to help. Contact us for recommendations.

In most cases, you can use existing IP phones with Telzio. You can search our Support pages for step-by-step guides on configuring specific models to use with Telzio. It’s important to note that our supporters can only provide limited support on phones that are not purchased directly from our shop.

Learn more about getting started with IP phones.

Mobile App

The Telzio mobile app enables you to start calling from day one, without investing in physical phones. The app provides similar functionality to an office phone, including:

  • Hold
  • Mute
  • Speakerphone
  • Transfer
  • Call Recording
  • Conferencing
  • Speed Dial
  • Contacts

From the app, you can call internally to other extensions, and transfer calls to other extensions. It’s helpful to note that calling internally between extensions is included as part of your Telzio service, and does not count towards your usage.

Learn more about the mobile app.


A softphone is a third-party application you can download on your computer to make and receive calls with Telzio. Telzio works with all SIP compatible apps.