# FAQs

App Access and Eligibility

<details>

<summary>Is Postman Calls available for public use?</summary>

No, Postman Calls is a government-use-only tool and is not available for public use.

{% hint style="info" %}
Please note that Postman Calls is currently accessible for **whitelisted agencies only**. If your agency has a compelling use case related to scam prevention, you may [Contact Us](/help/contact-us.md) to share more details.
{% endhint %}

</details>

<details>

<summary>What devices can I use Postman Calls on?</summary>

Postman Calls is currently designed to be used primarily on **Android smartphones**, with desktop access available as an alternative.&#x20;

**Supported Devices**

1. [Mobile Phones](/for-agency-users/getting-started/accessing-postman-calls.md#mobile-recommended): Samsung S21, S22, S23, S24, S25
2. [Desktop / Laptop](/for-agency-users/getting-started/accessing-postman-calls.md#desktop-alternative) access
3. [COMET Laptops](/for-agency-users/getting-started/accessing-postman-calls.md#desktop-alternative)

**Unsupported Devices**

1. Other mobile devices: currently being tested, experience may be unstable
2. GSIB Laptops: call audio cannot be connected
3. S-NET GSIB: internet access is restricted, preventing access to Postman Calls

For the best experience, it is advised to access Postman Calls using Google Chrome.

</details>

Others

<details>

<summary>Can I make calls to any recipient?</summary>

No, Postman Calls currently only supports calls to the following country codes:

1. Australia (+61)
2. Brazil (+55)
3. Canada (+1)
4. France (+33)
5. Germany (+49)
6. India (+91)
7. Indonesia (+62)
8. Israel (+972)
9. Japan (+81)
10. Malaysia (+60)
11. Singapore (+65)
12. South Korea (+82)
13. United Kingdom (+44)
14. United States (+1)

If you require calls to additional countries, you may [Contact Us](/help/contact-us.md) to share your use case.

</details>

<details>

<summary>When should I use Postman Calls?</summary>

{% hint style="info" %}
Please note that Postman Calls is currently accessible for **whitelisted agencies only**. If your agency has a compelling use case related to scam prevention, you may [Contact Us](/help/contact-us.md) to share more details.
{% endhint %}

Check internally for agency-specific policy on when Postman Calls should be used

</details>

For technical issues or questions related to using the app, please refer to our [Troubleshooting Page](/for-agency-users/using-postman-calls/troubleshooting.md).


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