# Accessing Postman Calls

{% tabs %}
{% tab title="Mobile (Recommended)" %}

#### 1) Prepare your device

Before you begin, ensure:

1. You are using a [smartphone](/help/faqs.md#what-devices-can-i-use-postman-calls-on) with the latest version of Google Chrome installed
2. Your phone has a stable internet connection
3. Your phone’s in-call volume is turned up (you may adjust this later as well)

#### 2) Open the Postman Calls website

1. Launch Google Chrome
   1. \[For SPF Officers] Access Google Chrome on your phone's **`Personal Space`**
2. Enter the official Postman Calls URL ([https://postman-calls.gov.sg](https://postman-calls.gov.sg/)) 

#### 3) Install the Postman Calls PWA[^1]

1. Tap the menu button (three dots) in Google Chrome
2. Tap "Add to Home screen"
3. Confirm installation

<figure><img src="/files/mlsKxlKz65Yoi4F1Hijt" alt=""><figcaption></figcaption></figure>

4. Add Postman Calls app from your apps menu to your home screen

<figure><img src="/files/5f6mtyugjzLwpGjFcKeL" alt="" width="375"><figcaption></figcaption></figure>

#### 4) Launch Postman Calls App

After installation:

1. Postman Calls appears as an icon on your apps/home screen
2. Tap the icon to launch

#### 5) Grant Microphone Permissions

When launched, Postman Calls will request for microphone access permission.

1. Allow "While using the app" when prompted
2. If you accidentally block permissions, refer to the in-app troubleshooting steps or [this section](/for-agency-users/using-postman-calls/troubleshooting.md#microphone-permissions)

<figure><img src="/files/LVxMQAoedB6smfiyyj7J" alt="" width="375"><figcaption></figcaption></figure>
{% endtab %}

{% tab title="Desktop / Laptop (Alternative)" %}

#### 1) Prepare your device

Before you begin, ensure:

1. You are using a [supported desktop/laptop](/help/faqs.md#what-devices-can-i-use-postman-calls-on) browser (Google Chrome recommended)
   1. ***Note**: GSIBs are not supported*
2. You have a stable internet connection
3. You have a working microphone (built-in microphone or wired/wireless headset)

#### 2) Open the Postman Calls website

1. Launch Google Chrome
2. Enter the official Postman Calls URL ([https://postman-calls.gov.sg](https://postman-calls.gov.sg/))&#x20;

#### 3) Microphone permissions (first use)

Your browser will prompt for microphone access:

1. Select "Allow while visiting the site"
2. If you accidentally block permissions, refer to the in-app troubleshooting steps or this [section](/for-agency-users/using-postman-calls/troubleshooting.md#microphone-permissions)

<figure><img src="/files/F7HeXiFIgRBLqssDHHW1" alt=""><figcaption></figcaption></figure>

#### 4) Recommended: use a headset

For clearer audio and fewer echo issues, a wired/wireless headset is generally advised.
{% endtab %}
{% endtabs %}

[^1]: Progressive Web App


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://postman-calls.guides.gov.sg/for-agency-users/getting-started/accessing-postman-calls.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.