# Requirements

### System Requirements

Zoom Phone SMS is supported on the Zoom Web App, Zoom Workplace desktop application, and the Zoom Workplace mobile application. Desktop users must be on a Windows, Mac, or Linux operating system, and mobile application users must be on an iOS or Android device.

### SMS usage requires an assigned Zoom Phone calling plan and a 10-digit phone number

To view step-by-step instructions for assigning Zoom Phone calling plans, please see the [Managing Phone Users](https://support.zoom.com/hc/en/article?id=zm_kb\&sysparm_article=KB0069309) support article.

Along with a supported calling plan, users must have a 10-digit phone number assigned to use SMS. For users outside of the US and Canada, the mobile phone number type is required. To view detailed instructions for assigning phone numbers, please see the [Number Management](https://support.zoom.com/hc/en/article?id=zm_kb\&sysparm_article=KB0074457) support article.

#### <mark style="color:blue;">United States and Canada Calling Plans</mark>

Users in the US or Canada must have one of the following Zoom Phone Calling Plans assigned to use SMS:

* Zoom Phone Metered
* Unlimited, Pro Plus
* Business Plus (US and Canada numbers)

#### <mark style="color:blue;">Australia Calling Plans</mark>

Users in Australia must have one of the following Zoom Phone Calling Plans assigned to use SMS:

* Zoom Phone Regional Calling Plan for AU/NZ
* Zoom Phone Pro with AU/NZ additional phone numbers
* Business Plus (AU/NZ numbers)

#### <mark style="color:blue;">United Kingdom Calling Plans</mark>

Users in the UK must have one of the following Zoom Phone Calling Plans assigned to use SMS:

* Zoom Phone Regional Calling Plan for UK/IR
* Zoom Phone Pro with UK/IR phone numbers
* Business Plus (UK/IR numbers)

### SMS Limitations

The following limitations apply to Zoom Phone SMS:

* SMS is not supported on physical desk phones.
* SMS is only available in the US, Canada, UK, and Australia. It is not available in New Zealand or Ireland at this time.
* International SMS is only available for US/CA.

{% hint style="info" %}
**Note**

The international SMS capability allows users in the US and Canada to send messages to Zoom Phone users or mobile phone users internationally. International Zoom Phone users cannot respond back to the Zoom Phone users in the US and Canada. International mobile phone users can respond back if they have an international SMS plan with their carrier.
{% endhint %}

* MMS is only available for US/CA.
* Zoom Phone Pro Global Select Unlimited does not support the mobile phone number type.


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